How's this for a compromise:

I just bought a small, cheap, extremely basic Ozarks Trails 6X5 2 man tent from Walmart. It's our second of this model and the first one has held up pretty well to some pretty heavy abuse by my son, niece and nephew over the past few years: (we've also got the 3 man version, which comes with a half sized fly. Not not great but OK and at an easy price point.)

Ozarks Trail 6X5 Scout Jr. Dome Tent

The rain fly is more of a napkin than anything but when you couple the tent with a tarp, you get a pretty nice little bug-free set-up, provided the weather isn't too terrible.

EDIT: Regular price in Canada is $19.99