SanDisk offers its refurbished SanDisk 128GB Extreme UHS-I Class 10 SDXC Memory Card for $19.99. Coupon code "EXTREMESD128" drops it to $12.99 and bags free shipping. That's $7 under our mention from three weeks ago, a $13 savings, and the lowest price we've seen. It features read/write speeds of up to 45MB/s.
Note: No warranty applies, but SanDisk offers a 30-day return policy.
There are many ways to get cheap and even free services and goods after reaching a certain age.