Chris In my opinion once you step up to a 700+ package you know and accept that its a high horse power engine and the life is shorter and maintenance is going to be higher.
Kinda like my Chevelle,racing it stuff is going to break!! That just part of it.
It would be cool if Dustin could put 2 cals in it with a switch for 2 diff pulley sizes Allow 700+ with the upgrades on low oct and the 800+hp with 93 or race gas
As far as loosing value,that would depend on how the person drove it,you can pull that info out of it,I guess there concern would be its turn up = raged out.
If I had 700's I would want at least upper 800's!!! Its never fast enough and you cant have to much horsepower.