I'm pondering a Beretta 92FS to help the economy get back on its feet.
Then buy two; one for each hand! All-American made have serial numbers that start with BER (or used to).
Are they worth buying or should I pass on them?
Yes/No.
What's reliability and accuracy like with a 92FS?
Very good. Reliability they are Numero Uno IMO, accuracy just behind SIGs on avg. Some will beat some SIGs. Have seen em do 1.5 inches at 25 yds out of the box/off the rack in the right hands.
Are the trigger pulls smooth or rough?
Generally good; can vary like any production item. They all slick up very well though.
Do they stand well to use or do they rust easily?
The military says about 35,000+ for the frames and 75,000+ for slides w mil-spec ammo (about the same as BHPs, SIGs, alloy Smiths in my experience, less than Glocks, CZs and Rugers). Know of them going over 100,000 w std 9mm ammo. Might have to replace the locking block once or twice along the way.
Rust? Inox (stainless) is as good as any stainless. The Bruniton (polymer/Teflon) on the slide/some other parts is very good. Most of the barrels are just parkerized, will rust if not cared for in a few days. Our issue M9s got rust specks on the barrel now and again (just wiped off easily); never saw any on the slide/frame.
How much should I expect to pay for factory prebans?
Less than for anybody else but Ruger; plenty out there for $50 or less if you look hard enough.
Between about 87 and 92 at least 18 broke slides that I know of (6 in the field, 12 in testing). Some with suspect ammo, most with mil-spec issue ammo under controlled conditions. Some over 25,000 rounds, some as early as 2000 rounds. All were Italian made AFAIK.
Don't worry about it; I didn't. LAPD/LASO has been using em for more than 15 yrs w/o any of the same problems. They have had less problems w their Berettas than NYPD has had w their Glocks or Baltimore County PD has had w ther SIGs.
Nobody is perfect!