I do not have a good eye for pigeons and use the numbers to tell them apart and for record keeping. It also lets me keep track of the age of the birds I am buying. If you ever change your management and start banding please let me know.
I bought bands in very small quantity for 67 cents each. If needed, I'd gladly pay this prohibitively expensive expense on top of the price you charge.
It would be nice to see pics of the loft where the birds live also. I like banded birds myself as it also keeps track of their age in case you resell or gift them to someone. Im sure breeders would band babies for you if you provided the bands and had an agreement for hatching some esp for you. or you might like a breeder that does not have so much going on he can't band.