Maybe spring isn't the best time to look for a used bike or something because I haven't found much on Craigslist for a large city the size of Vegas. Saw plenty of women's bikes but that doesn't help me. The men's bikes were either too large (online calculator says my size is 53-54) and/or they are trying to sell them for almost full retail price. Maybe they paid too much to begin with, but $100 off list for a +5 yr old $1500 bike is not my idea of buying used. Guess there IS a sucker born every minute. In one ad the 3rd owner was trying to get almost what he said he paid for it.
There are many bike shops here but after visiting some it was the same story. You couldn't find a minimum of 105 gear without getting into some serious price tags and I read that it's harder to upgrade if you don't start with 105, ( I read so many posts I can't specify it exactly). None of the shops I found sold used bikes or had a bulletin board of any kind for people who upgraded to another bike.
It's funny that biking is so popular here (I'm in Boulder City outside of Vegas) but the used market sucks. So at the end of the day buying from BikesDirect is the most logical choice for me. I plan on getting something like a Motobecane in the $1500 range. I've googled the models I'm interested in and I've seen mostly positive reviews and comments from this forum and others. Of course, it doesn't help when every owner says the same thing about every bike out there, "It's the best thing ever!!!!"