Have you thought about developing and printing your own films? It is very easy if you use black and white film, which is my own preference with Rolleiflex cameras, and second-hand enlargers, processing trays, timers, developing tanks, etc. can be bought very cheaply on eBay or at photographic markets. Similarly, developer and fixer can still be obtained very easily. You don't need a dedicated darkroom; a darkened laundry or bathroom will do just as well. You can print 8 x 10-inch photos at half the cost you are paying for your 5 x 5-inch prints, and the results will amaze you. The quality of Rolleiflex lenses really only becomes apparent in enlargements of at least this size.
The cost of film processing will increase as demand for it continues to fall. I found it too expensive some years back, and decided to process my own films, if only to save money. I thought it would be difficult to learn, but I learnt the basics in five minutes. (You get the information from the Internet.) Almost immediately, I could see that my camera lenses were a lot better than I had thought. So was my photography. As happens to many who take up darkroom photography, I soon became obsessed with trying to produce 'the perfect print', inevitably wasting a lot of paper in the process, but medication is helping me get on top of that now and I am almost back to normal.
Regards,
Eddie Vaughan