I just bought a Rolleicord TLR camera, which shoots 6 cm square negatives. It cost me $250 on eBay. If shot with good quality low grain film, and scanned with a professional grade negative scanner, the equivalent resolution I get from it should be on the order of 100 megapixels, and possibly more in good lighting conditions.
Even regular 35 mm film shot in a decent SLR will give you 30+ megapixels. You can buy good used 35 mm cameras all day long for less than $100. You can buy a Hasselblad 500C, the very same camera the Apollo astronauts went to the moon with and that Ansel Adams used for shooting his iconic photographs of Yosemite, which uses the same 6 cm film as my Rollei, for less than $1000.
Buying a 100 megapixel digital camera would cost me ten thousand dollars minimum.
See: https://petapixel.com/2014/12/18/comparing-image-quality-fil...