But it's true that colour photography is essentially dead for non billionaires. I stocked up with more than 100 rolls a few years ago. When I run out, I'll just continue with black and white.
Bulk rolls of Fomapan 100 are still very cheap. For 4x5, a single 50 sheet pack lasts me more than a year.
For 8x10, shooting X-Ray film is cheaper than Fomapan in 4x5 (but the film is very easy to scratch).