I guess it depends how much cash you have and how much you want to spend. Personally my £600 pound hub motor bikes (2 of) give me a lot of pleasure so for me yes. I would balk at paying £2k plus for a bike but that is mainly beacause it would interfere with my cash flow and for me not really see much benefit in a super expensive bike . But I guess it is so subjective. how much you want to get in and how much pleasure you get out.. each to their own Buy what you can afford and enjoy it .Reliability, longevity, entry level parts, performance, resale values and no pedals. Are they really worth spending as much on, as you might do, when buying a decent used car? What really makes these bikes worth £1k, £2k, £3k or even £5k plus?
Regards