Hm if there is only a download option it is not usefull for photographer.
Because:
- People who buy photography art like a (darkroom) print, not a jpg, tif, png, what ever.
- People who buy such art want a unique pictures, or a limited edition picture with original signature.
- People like to get the picture with a frame, etc.
Well for books and movies, etc. it could be a place.
Do you think it would be useful to limit downloads to some small number?
That is not the point.
People who buy painting, drawing, photography, etc. art don't do it online. Because online has to many limits ... low dpi, wrong color calibrated displays, etc.
Collectors visit exhibitions, and offline galleries to see the real one. They get the idea how this piece or art look at the wall (at home). Here a picture look great at mobile phone, but as a print 120x120cm at the wall (at home) look like a piece of shit.
And, don't forget an other point: tax, warranty and other laws ...