I have no experience in actually selling framed items, however in my opinion a suitable frame on some wall art helps the customer visualise the final offering! And could well aid sales. Most artwork i buy tends to be framed - i see it as part of the art work itself. Many people also don't want the hassle of finding the right sized frame to put a piece of art in and prefer to buy framed pictures as the artist visualises it.
On the other side however, many people often like a piece of work but are put off by the frame as its not to their taste. If its possible, perhaps provide both options and just get one framed to start with and see if it sells. After all, this is the method adopted by many artists in galleries: Offering a framed image and a cheaper mounted print, which also serves to suit both pockets!
Hope my thoughts help your decision!
