Hang around for a year, and those high end bikes get cheaper as everything changes colour for the next year. Not everyone pays full whack for stuff :D
My first serious bike felt like cost me a lot more than the 400 quid I paid for it. I worked 2 years on my paper round and saved up for it. On the face of it, later purchases did cost a lot more but felt less significant as my salary was a lot higher.
I’d also argue that bikes cost a lot more 20 years ago. That 400 quid GT Karakoram was a rigid steel frame with canti’s and a penchant for wheels buckling. Nowadays a 400 quid bike will weigh less, function better and probably put up with a lot more (ab)use