I think you'll like it Sean. Lenses and accessories are cheap on eBay.

I've put together a 645 Pro system with two bodies, winders, prisms, several backs (including a 35mm back) and nearly every lens made for it (except the ultra expensive five figure lenses) for less than $3,000 buying on eBay.

Like you said it's nice to take when you don't feel like messing with large format.