Walmart offers the PBS Retro Space-Themed Virtual Reality Headset for Android / iOS with the PBS Lunar Base VR App for $9.99. Opt for in-store pickup to dodge the $5.99 shipping fee. That's $15 off list and tied with our mention from three weeks ago as the lowest price we could find. (For further comparison, it was $2 less in December.) It works with phones 3.5" to 8" and features dual headphone slots, space-themed stickers, and a simulated viewing distance of 1,000" at 10 feet.
With these companies, it might be easier than you think to negotiate your monthly bill down.