Interesting conversation on this one, huh? Get yourself one of those "slip & slides" mat thingies that cover your sewing machine bed, has the little hole for the needle, and is slick on one side. Then make sure your machine is on a large enough table/cabinet to not have your quilt "hang down". Put a chair close to the table, or ironing board, or whatever you can to help hold the quilt up so it doesn't hang down. You don't really need an extension table to quilt...even large quilts. The "slip n slide" thing works great, and then I use the red rubber finger thingies...works great.
I agree with the other ladies.....just keep sewing/quilting on your Bernina, if that's the one you love. Don't be concerned about "using it up..or the hours".
I have 3 Janomes and my Janome 6500 is my quilting horse.
Good luck.