I think you should charge what the work is worth to you and the time and effort you put into it. To me, $200 is actually quite low - and no, I couldn't afford to buy $200 prints either. But if I'm to sell a print, it should be worth my while.
If I figure much of the time spent developing portfolios, the endless hours, the amount of paper, film, chemistry, water, electricity, the cost of the space you're in, gasoline, wear and tear on your vehicle, your camera equipment, wear and tear on your freakin' socks, it adds up to quite a bit. Even if you just want to break even you'd have to do the math first and make sure you're handsomely compensated. Once I figured out that for every print I've sold to date I've used up about 50 sheets of premium paper (out of which perhaps 15 good prints emerge). And figuring that I, on average, spend between 45 and 90 minutes per print (with toning, bleaching, spotting, mounting, etc) then if I have spent 50 hours and I charge $200 for a print, then I'm working for $3 per hour if I don't count anything but my time and the paper I burned through. Not even half of minimum wage. Hopefully the math will start speaking better in my favor soon, so that my hit rate is better.
- Thomas