Having bought bags from Clear Bags for a long time I'd be willing to bet that if the clear plastic idea for paintings catches on Clear Bags will jump on it.
Yeah, I gave up on shows -- outdoor or indoor -- back in the sixties. Periodically my wife and I slog through a local outdoor show nowadays, and even, occasionally, an indoor show. A couple years ago we went through a local outdoor show that went up the day after an all-day deluge. The ground was very wet and very muddy and you had to jump from one small, sinking wooden pallet to another to move around, and to top it off, the art wasn't much good. In the sixties I used to do indoor shows, but I finally got tired of the comment: "Them's some really clear pictures."
Rob's "Read and suffer" over on "But is it Art?" sort of says it all. Since the start of the recession the middle has dropped out of the art market. Unless you circulate with the Christie's and Sotheby's marketing crowd, you might as well forget it.