When I took up photography long years ago, as a poor starving student, I had the same question. Do I buy the used Pentax SLR or the new rangefinder Yashica for the same price? I went for the Pentax, and loved it. Same with bikes, except buy what fits and buy what you can afford. You can always upgrade components later, if it's a bike you like and enjoy. I've had used bikes and new bikes. As long as they fit, and are properly adjusted, very little difference in the riding experience. I still have my 54 year old Legnano that I got new in 1964. Its only new for a few hours, then all bikes are used, so buy the one you like. I will say that 2 of the 3 modern bikes I got new were year end closeouts and I got great deals off list price. The other "newish" one was a mfr demo that rode like new, but was priced at substantial discount. Whatever, be sure you ride it first, ideally, ride several of them.