As an STI owner, I'd gladly pay the $5500 extra for the transmission, DCCD, and brakes alone, let alone a better suspension. Power is relative as that can always be bumped up rather "cheap" compared to other things.
Welcome and goodluck with your purchase. I'd say with your hobbies and toys, you'll fit in just fine. And as a running joke that you'll figure out...you sound like you do NOT need a new wife