I picked up a shaper a while ago (that I restored) and haven't used yet.
There is a maggi power feeder (steff 2034 with 4 rollers) for sale at $550 locally which seems to be in good condition. I think it's a 1HP (or at least 1/2HP)
I know they are good feeders but is this a good price? it appears they sell for over $1k new.
I will most likely keep using my router more often but I might decide to build an entry door and kitchen cabinet for a new house, in which case the shaper could be quite useful. I am thinking worst case I could sell it for about the same price.