The wader discussion on any forum always turns out to be guys saying how many years they've owned their waders without leaks. You can own a pair of waders and only wear them several times a year, or you could own them a year and wear them hundreds of days. Unless you'd know roughly how many days on the water someone gets out of a pair before a leak, then you don't really know how good the waders are.
No matter what brand I buy, I never get more than two years out of a pair. Actually, I rarely get 1.5 years out of a pair of waders. I'd imagine it would be much less time if I bought cheap waders.
If you don't fish often, there is nothing wrong with going with cheap breathables. You'll probably get a couple years out of them, anyway.