I still shoot my 20 yr old PSE wheel bow with a 35% let-off and am still shooting fingers. As a result I keep my shots to within 25 yards but haven't been skunked in a long time.
I'd spend maybe $75 getting your bow "tuned" and checked out......but then after the season shoot some of the other bows in the shop
If you shoot the new bows now you will DEFINITELY want to buy new