Paid 149 last fall for a Danner mag 24.
Its nice but loud. I also have a Danner mag18 brand new (used 2 hours) in box that I paid 130 for. Now its a sweet pump cause its so much quieter, but I wanted more gph. Both from Fosters and Smith.
You have to read the description for each item on e-bay.. The mag 12 I just got was new in box with a 30 day money back gurantee from the seller and a 3 year warranty from the manufacturer..