I used tarps for a lot of years, and just put up with the bugs. I liked my tarps a lot, but when 2 - 2.5 pound solo tents came along, I never looked back: same great ventilation (without the fly), good storm protection, and no heavier than my tarps.

"No heavier?" you say, "but an 8x10 silnylon tarp only weighs a pound! And you call yourself an accountant?!"

The fact is, you can't use a tarp alone; it has to be a tarp plus something: tarp and bivy, tarp and groundcloth, etc. The "something" weighs something, too. And don't forget the stakes.

I'm not trying to turn you against tarps - they're a very pleasant way to camp. Just be sure, when you're comparing weights, to include not only the tarp, but the stakes, cord, and "something" to make sure you're really saving weight. (Don't count the weight of your hiking poles, which you'll use to pitch the tarp, since you'll be carrying the poles anyhow.)