Costco Members: Timber Ridge Yurt Glamping Tent (13.5' x 13.5' x 98") EXPIRED

So all things considered, this is a nice buy if "glamping" (glamorous camping) is what you're after.

For 2-4 people (and a less "aspirational" look, imo), there's the walmart one that I actually consider more practical. Easy setup, and there is no center pole. At 12'x12' it should easily sleep 4 very comfortably. Ozark Teepee [walmart.com].

Guide gear also has some teepee tents, but they have a center pole. They come in brown-ish (regular [sportsmansguide.com]) and green-ish (deluxe) [sportsmansguide.com].

Lastly, at this price-point I'd suggest something a little more "practical", particularly the cabin style tents. Adding a string of lights and a cool/aesthetic rug at the entrance is usually all you need to glamp it up.
There's the instant type that I'd recommend the most, such as the Coleman Skylodge 6p [coleman.com] and the Ozark Trail 8-Person Instant Hexagon [walmart.com].
Less practical are the kind that you have to set up with someone else's help, like the Coleman 4p Evergreen [coleman.com], Coleman Skydome 6p [coleman.com], Ozark Trail 5-Person Dome Tent [walmart.com], and a very complicated (yet pretty cool-looking) Ozark Trail 15' x 15' 9-Person Lighted Sphere Tent [walmart.com].

Stick with a tent that has enough height for an average person to stand in (figure about 6'), as it's the most important part of glamping. These tents will all have a footprint that's a little bigger, but mind that you could run in to space issues at your actual camping site. Really, the only reason not to go too big on your tent is for campsite selection. Try to stay away from tents with an interior pole (unless the interior is huge), because it won't be fun when you knock it over while doing "drunk couples yoga".

Because it's posted on slickdeals? ;-)

Most things posted for Costco are just list price deals. I have no idea why people post them.

A glamping tent usually uses Cotton(or mixture).
The cotton tent is heavier than Polyester, but It more comfortable to sleep in.
That's why those are expensive.