Up until last Christmas, I hadn't bought a camera more expensive than £150 in my life. Some years ago I obtained an EOS 5 for about £100 which was an absolute bargain and cut my teeth using that. It went kaputt last Christmas and I replaced it with the EOS 3 which is so much better to handle than use than the EOS 5, they're world's apart.
However 2 days ago I bought my most expensive camera to date - a Leica M2. I paid £300 and it's in pretty good condition (especially from the front) and very happy with it.
But that is about the maximum that I'd pay for any camera as I'm old enough, probably wise enough and hopefully not that ugly enough to know it's more about the glass and most importantly the person behind the viewfinder which counts for much more.