4300 is within the sales price range of exotic propellers, anyway.

a feathering/folding prop for a 35 foot sail boat is about 3 grand already, and it's certainly not a single piece of billet. The real exotic race-y stuff for that size boat is ~6 grand.

Yes, it sucks to ruin a prop -- but it's almost certainly user error 90% of the time; either sucking in boat lines (which will lead to a stall and engine mount damage/ prop-shaft damage in a majority of cases, not prop damage.), or running aground.