I've got over 100 dives already this year ... and it's only March ...
Brass clips may be OK for the casual, recreational diver ... but the metal's too soft, and the moving shaft will wear to a sharp edge. If you're going to be serious about your gear, spend the money on the good stuff.
The difference in price between the good and cheapo bolt snaps doesn't even factor into the "noise level" of what I spend on scuba gear. I buy most of mine from Dive Rite Express ... and usually order them a dozen at a time (two or three times a year, since they seem to grow legs).
... Bob (Grateful Diver)