10 Surprisingly Expensive Things You Can Buy at Costco

Advertising Disclosure: When you buy something by clicking links on our site, we may earn a small commission, but it never affects the products or services we recommend.

Woman showing off a diamond ring
New Africa / Shutterstock.com

It’s no secret that Costco’s bulk discounts draw crowds — much like their tasty sample stations sprinkled throughout the store.

Since 1976, the company has offered pared-down service in exchange for affordable prices on food, household essentials, beauty products, pet supplies and other everyday items.

Certainly, Costco is not the first place that comes to mind when you’re shopping for an engagement ring or backyard gazebo. But maybe it should be.

The warehouse club has come a long way. What was once a business-to-business supplier operating out of a converted airplane hangar is now a billion-dollar company.

Costco now offers a host of big-ticket items that may surprise you. Curious about what they are? Following are some of the most expensive things you can buy at Costco, either online or in-store.

While some of these purchases may seem like a pipe dream, others could be a surprisingly good deal.

1. Gazebos

Backyard gazebo
Imfoto / Shutterstock.com

Price: $1,199.99 to $4,999.99

Costco has more than a dozen different gazebo design styles. Depending on your budget, you can get a simple pitched-roof pavilion or a fully enclosed cape-inspired screen-house.

If even the cheapest of these is beyond your budget, check out “11 Ways to Upgrade Your Yard for $100 or Less.”

2. Pianos

Woman teaching piano lessons
kazuya goto / Shutterstock.com

Price: $349.99 to $5,499.99

The piano selection at Costco hits the right notes. These are all-digital pianos that can connect to speakers, mobile devices or a home entertainment system. It sounds like they have everything you need for a concert.

3. Outdoor kitchens

Outdoor kitchen in a backyard
Ozgur Coskun / Shutterstock.com

Price: $2,199.99 to $3,799.99

Believe it or not, a professional-looking outdoor kitchen doesn’t require a total renovation. Ready-made barbecue islands are available at Costco in various shapes, styles and forms. These modular pieces offer high-end features, such as soft-closing cabinets, stainless steel countertops and foldable prep spaces.

4. Caviar

Caviar and champagne
Natalia Lisovskaya / Shutterstock.com

Price: $99.99 to $1,999.99

Many national grocers sell caviar, but not many of them offer one that’s nearly $2,000 per tin. Even if you never splurge on the Plaza Golden Osetra Caviar Kilo Pack, it feels good to know your Costco membership gives you that option.

5. Greenhouses

Man caring for plants in a backyard greenhouse
Snorre Roberg / Shutterstock.com

Price: $279.99 to $14,499.99

Gardening is hardly known as a budget-breaking habit — unless, of course, you invest in a greenhouse the size of a bedroom.

The Palram Victory Orangery Greenhouse and Solarium is a 10-foot-by-12-foot space, allowing ample room. Yet at $1,999.99, it’s hardly the most expensive greenhouse Costco offers.

6. Wine cellars and coolers

Wine cellar
Vershinin89 / Shutterstock.com

Price: $229.99 to $5,999.99

Oenophiles tend to amass dozens, if not hundreds, of wines for their particular grapes, manufacturing methods or unique labels. These are exactly the people who need Costco’s temperature-controlled wine cellars and coolers. Don’t fret, there’s one for every type of collector.

7. Japanese beef

Wagyu rib eye steak
hlphoto / Shutterstock.com

Price: Up to $1,999.99

For anyone who spends hundreds of dollars on Wagyu, beef will always be what’s for dinner. The Japanese favorite is known to be an expensive cut of meat — and the proof is on the plate.

8. Diamond rings

Woman with diamond ring
Jade ThaiCatwalk / Shutterstock.com

Price: Up to $329,999.99

Costco is not in the business of real estate, but it does sell diamond rings for prices that exceed what you might pay for a nice home. Unfortunately, at that price, these particular diamonds can’t be every girl’s best friend.

9. Luxury vacations

Algarve, Portugal
Benny Marty / Shutterstock.com

Price: Varies

Whether you prefer an all-inclusive cruise or a quaint retreat in Dublin, Ireland, Costco’s travel division is designed to make all your vacation dreams come true. For a price, Costco Travel offers flight accommodations, hotels, car rentals and package deals. Additional member-only perks might be included.

10. Home saunas

Sauna
Lisjatina / Shutterstock.com

Price: $1,599.99 to $4,999.99

You can easily overlook the price of pampering, but it will be hard to miss an eight-person sauna at your house. Yes, Costco offers other sizes, but the smallest and least expensive is still a two-person sauna for more than $1,000.