>>1666587https://www.youtube.com/watch?v=mDOgKA32YBQCyclocross is a form of racing which has been around for decades. They go offroad. They lift and carry their bikes and climb stairs. This isn't a usual road bike. It's heavier, and more durable. The normal drivetrains for CX have a very narrow range that top out very early, which might not matter if you have no hills or legs, and it's been replaced anyways.
Gravel is a relatively new hip thing and has tended to cause a jump in prices on everything close enough to it, including CX.
The frame is carbon fiber, which is not as strong when getting scraped on concrete, or knocked around on bike racks, and is a theft magnet, but it's an offroad frame, so it's got more leeway..
I don't know the prices in your area. Here it would be an A- price. The question is, is it the right bike for you? Test ride it. It has a somewhat depressed price because all the cool offroad riders have gone to disc.
>>1666595Saddle and stem, possibly handlebars, and the thing MUST fit properly. Good stores offer a discount or special deal on saddle trade ins, as you need to get them to fit right. I also would absolutely require a test ride to make sure it felt right.