I know
you'll find a nice one. I got mine with an old Kenmore and a bunch of pieces/parts for $30. It's in great shape, ran a little rough when I first got it, but a little oil in the top bearing and it runs as quiet as ever. I also swapped out the 4-row brush roll it came with for the roller in my model 300, which is the old style brush and beat. I recently installed new brush strips in the 300's roller, and now that it's in the 28, I have a 50's machine that can clean with the best of them.