Not to hi-jack your thread, and I personally enjoy the wingless look the most, have a very cheap solution for people who just want to get the wing off, and go on about your business maybe saving the extra cash to have it done professionally. My suggestion is plastic plugs, I got them at napa, Hot glue, and I bought some WRB spray cans from Grimmspeed.com which are about 16 bucks a can. Here is a picture. If anyone is interested in a more detailed explanation I can do that. Pics first.
I basically took the flat topped plastic trim panel plugs that were big enough to cover the hole the brake light plug goes through, they were less than 6 bucks for a pack of 15. I then stuck them half way into a cardboard box and primer-ed, painted, and cleared the **** out of them. While the spoiler was of, I used a buffing pad from Autozone, that fits in my drill, and some Turtle Wax polish to polish the lid and get rid of the dirtyness from where the base of the spoiler was as well as where you could tell the difference from the Subaru lettering. This is after I washed it of course. I waxed and polished the trunk without the plugs in it. ***I tried to polish and wax the plugs but they are so small and the edges are sharp that it starts to take the clear and paint off and it's basically safer to install the painted plugs after you wax the trunk.*** I used hot glue to hold them down. I used a very liberal amount and made sure it squished out around the plugs themselves, got them pushed down tight, and let the glue dry. Once the hot glue is dry, you can put your finger on the plug and actually pull the excess ring of glue right off.