For $1500 you could get a new aluminum frame Shimano 105 spec'd bike if someone had one in stock. Or you could get the new, old stock Tarmac Pro. As for the 23mm tires, I rode them for decades and never had an issue. As for the 2006 carbon fiber frame, I'd take it over a new aluminum frame any day. The 10 speed Shimano Dura Ace/Ultegra combination is fantastic. This Tarmac is a nice bike. The full-carbon fiber fork, carbon fiber bars, and carbon fiber stem were and still are only used on relatively high end bikes. A friend of mine just sold a 10 year old, 105 spec'd Cannondale with 20,000 miles on it for $950. Bikes are out of stock. Prices are through the roof. If I were looking I'd buy it in a second. Even ifyou didn't ride it you could part it out and make money.