Don't forget that it is widely accepted that film shooters are just plain sexier. Seriously, every cool character who is taking photos in a movie or an ad is carrying a hasselblad, Leica or other film camera. Only computer geeks shoot digital. Getting into film might lead to having your own darkroom - If you meet someone at a club, you can invite them back to your darkroom to see what develops. And if you want to be taken seriously as an artist, well... There are a lot of pros to shooting film.
But as a negative, you do know most medium format cameras have 0 AF points?
Anyway, not sure why you think medium format is so expensive. You can pick up a nice Mamiya kit for a few hundred dollars. It might cost $1 to $1.50 per photo, but the reality is you probably won't shoot as many as photos as you would with digital - With the manual focusing, manual film advancing, and the cost per shot, you think twice about each photo. This keeps the cost down a bit. And think of how superior you'll feel to those people using tiny, miniscule FF sensors.
Personally, I go through love/hate periods with 35mm film. Whereas I like the look of medium format and shoot it a lot, for the last couple of years I've preferred digital to 35mm and my trusty Canon film bodies have been gathering dust. But a 1v is a nice camera. Its probably the best film camera Canon will ever make. It uses your current lenses. Apart from still being a bit pricey, what's there to lose? If you get bored with it, just sell it.
BTW, a 1Ds3 is suggested above. A 1Ds2 won't break the bank, give good image quality and give you the 45 point AF and 1 series feel and build quality, but then a 5D3 will also do all of this and is also probably better.