I believe that Photomaps should be added to the Townyserver, and that they could be easily implemented into a small money flowy to support the server.
Photomaps are no more then a commodity item, but I have no doubt that they will be sought after and people will be willing to spend a bit of money on them. They could be easily implemented into the Rank system, for example "once a week you may turn a photo (as long as its appropriate of course) into a map and be given a copy of it", or perhaps they could be sold Separately, like $1 = 1 photomap (maybe more spendy for bigger map). Or maybe even both.
I personally would be more then willing to get the max rank almost just for the photomaps, as they would be hilarious in their own right.