It all depends on what you're buying.I used to do a little bit of coke once in a while, but only before meals.If I was in the market for coke now, and I found a vendor with a consistently high quality product, I'd never use another vendor.Weed and hash, however, are a completely different game.I buy from absolutely fucking everyone. I'm in the UK, and I've had smoke sent from here, the EU and the states; sometimes I have it sent here, and quite a few times I get someone I know local to order and forward it.I haven't dealt with any weed vendors here yet that I'd never deal with a second time, so far. I've dealt with a few that are going to see a lot of repeat business. Right now, I've got 7 orders from 4 countries on the way. Usually grams or eighths, occasionally a quarter if it's something I've tried before and really like. I'm a med user, and there is nothing in the world that is worse than building a terrific tolerance to some cannabis that you have a good line on. Changing it up and around often inhibits tolerance, and gives me a choice of a smoke depending on how I'm feeling. Do I want a little pain relief, or do I want to hit on a pure indica that is going to knock me out for the night, and give me good long rest.If you're looking for just one thing consistently, find the best vendor for your needs. Otherwise, expand your horizons and nibble a bit on all the chocolates.Of course, with me, it's all about the variety.