Was at Walmart today buyin' some dog food and I came across a buffer for around $20, has anyone seen it? That's pretty darn cheap, just wondering if it really works or if it's gonna last.

If its only $20 does it matter?

They work OK for light scratches and light buffing. Its a dense foam pad on a small electric motor. I have used one of those cheapo ones for years now and it still works fine and gets the light jobbers done. Just keep the pad clean, don't use too much compound, and keep it level.