'decent' yes. But true, if you get a bike that's not full of electronics and motors and gps and what not, you dont have to spend a fortune. between 100 and 200 euro you ride a solid bike that does not fall apart with every bump in the road and can be repaired at home.

In the Netherlands bikes are free if you have an angle grinder lol

Hm, yes, 'lol'. That has not been my reaction when I found my bike missing.

In rural Sweden - where I now live - they're free when you find them in the ditch, notify the police about your find with identifying data like frame number etc and wait for 3 months. Assuming that the bike does not have a label identifying the owner - in which case you should contact him/her - they'll send you a letter confirming you're now the owner. Those bikes often need some work - how does a 30-speed MTB end up chainless in a ditch in the middle of nowhere? - but that is all part of the 'game'. It is hard to get closer to re-use, reduce, re-cycle than cycling on re-used bikes.