1) How many kits (rough estimate) would you say you buy in a year?
Fluctuates wildly, but I average buying about 4-6 kits per year. Last year i bought around 4, but received another 4 or so for birthday/Christmas presents. The year before I only bought 2. Overall, my stash is sitting at just under 30, which i would to try and dwindle (via building), so am trying not to buy too many more.
2) Do you buy a kit as soon as it is released or do you wait a while? If you wait, what's the main reason for waiting?
Normally I wait. The only kit I bought as soon as it was released was Dragon's 1/35 Huey UH-1D. Why? Because I'd just gotten back into the hobby and had always wanted a Huey kit as a kid, but never got one.
Otherwise, i wait. At the moment, i'm saving for Trumpeter's 1/32 F-14A. Given it's price tag, i think it'll be my only kit purchase this year, so i'm prepared to wait.
3) Do you buy online or from a physical LHS or show vendors or combination?
Both. I'd say, in the past year, 40% LHS, 60% online. When i first got back into the hobby, online was far cheaper, however, (probably because of our dollar strength), i'm finding there is only about a $5 - $15 saving online. For that amount, i prefer to support my LHS.
All supplies are LHS sourced.
4) If you buy online, from who? (feel free to list more than one if you have multiple favorites)
Used to be www.hlj.com, but i'm finding them too expensive now, so i've switched to www.luckymodel.com - they take a little longer if not in stock, but seem much better priced.