Armed with the info that Trek does make triples, I don't know if I'd go with that LBS. Or I'd proceed with caution, go with your friend and start quizzing the guy and see if he's reluctant for some reason or just completely unaware of the product (maybe he's the new kid?). What I would worry most about is if the guy is telling an inexperienced customer "oh hey no Trek doesn't make triples" because the store only carries the compacts and just wants to make a sale on what they have in stock. I had a rude experience today after work at a not so local BS and it's the second obnoxious encounter I've had at that particular location and I'm about to write them off my list even for quick grabs of basic supplies (tubes/tires/whatever). I'd rather go to their location across town where I hadn't gotten attitude in the past. (The attitude was totally reminiscent of a woman trying to buy a car, go sell used cars if you want to be that way! amirite?)