now I think a knife is of poor quality in some way if its below $50. Am I being unreasonable?
Yes.
There are many knives under $50 (and even under $20) that are good quality, capable of lasting for decades of normal use.
Do you buy knives that are around or under $50?
Yep, quite regularly. I recently bought several and I'm sure I'll buy more.
Are there any particular examples of good knives for around this price?
Yes, hundreds at least.
I have recently bought:
Mora Bushcraft Triflex ($20)
Mora HighQ Allround Carbon ($10)
Mora HighQ Allround Stainless ($11)
Victorinox Ranger ($25 shipped)
Victorinox Trekker ($25 shipped)
Victorinox Farmer ($25 shipped)
Victorinox Cadet ($15 shipped)
I also own and love my Ontario RAT-1 locking folder ($26)
and I have 4 Opinel folders. (dearest was ~$13)
I would also buy Condor machetes which by all reports are great even though they are often under $20.
I hate junk knives and junk anything else for that matter, I don't like to waste my money on crappy products. But while
most cheap knives are junk, not
all cheap knives are junk.
A Sebenza might be quite a lot tougher than a carbon steel Opinel, but I know which one I would put my money on as being the better slicer. And for real hard use I would rate a $20 Condor machete as the tougher knife compared with a Sebenza. Of course I am not going to carry a Condor machete in my pocket, I'm just saying that for particular tasks you can often find a great knife at a great price.
I fully understand having a nice knife, bike or car but it doesn't mean that inexpensive and cheap are the same thing.
And anyone that doesn't think it is possible to buy a Toyota under $5000 and then run up over 100,000 miles of driving over a few years without spending bugger all more than routine maintenance costs - well they just don't know much about how reliable cheap cars can be.
With my expensive (over $50) knives I didn't spend much either. My BK-7 & BK-9 cost about $70 each and they are plenty tough enough to handle 'hard use' knife tasks. MY ESEE Lite Machete cost under $60 for the knife, under $80 including sheath - that's for 18" blade & micarta scales. My HI Ganga Ram is my dearest knife at $95 - that's a 15" hand made knife that came with a scabbard, chakma & karda.
In summary:
I like cheap, I like value, I don't like junk.
Cheap & crappy? no thanks.
Cheap but good - ooooh, nice, value for my dollar.