Ignore anyone telling you not to shoot medium format because you intend on scanning your negatives and ignore how many negs per roll you can get when picking format. Pick the format that best suits your composition needs.
+1
It's always fun to watch these threads where a relatively simple innocent question spirals off into pages of responses, but I suppose many of us wouldn't be here if we weren't a bit on the obsessive side!
Most of my film shooting these days is medium format -- or larger. Compared with 35mm, the larger frames reduce the visibility of dust and mishaps, and are far easier to scan -- if you're doing that -- on a flatbed. I do still darkroom print some of my work for exhibition from time to time, but much of my stuff winds up shared on the web to reach far-flung friends and family.
I use a
Perkeo II (6x6cm) folder, an
Ercona II (6x9cm) folder, a
Yashica Mat 124G TLR (6x6cm), and a
Bronica SQ-A SLR (6x6cm). That list is loosely in the order of "seriousness." Although the two folders are sort of tied, I tend not to use the Ercona as much. With its 6x9 format, it only gets 8 shots on a roll, and the camera is bigger and heavier than the Perkeo (in theory it has the ability to do 6x6, but the masks are as common as pink unicorns). I omit my
Kodak Brownie Target Six-20 box camera from the active list, although it does shoot 6x9. It still works, so I guess the four or five dollars my parents paid for it in 1949 was well spent.
The last year or two I've been shooting the Yashica on vacation trips that are not specifically photographic expeditions. It has only one focal length and a pretty decent lens. (I believe have been some auxiliary attachments for mild wide angle and telephoto, but have never looked into that.)
The Bronica I have had periodic GAS attacks that have gone way beyond my once intended minimalist approach. But it is the one I use for
Really Serious Projects(tm). That, like the legendary Hasselblad, is a
system camera one can view as an "Adult TinkerToy."
The current problem with medium format is that most cameras are twenty to fifty or more years old and it can be tricky to get one with assurance that it will work decently. This tends to push one toward buying from a seller who cleans and adjusts them, which runs the price up. If you can get a folder with good bellows and working lens/shutter/aperture, or any of the TLRs mentioned along this thread, they are a good place to start.
(If I was in fact the Dave Thomas of Wendy's fame, I would have a recent Rolleiflex and a suitcase of Hassy gear. But I'm not -- and he's under the dirt, so "we're even." :munch: )