Only data point I can offer is I sold a working one from 1956 just over a year ago for $300, but it did sit a while. I saw it listed several months ago in the area asking $250. I originally got it non-working (lit up but didn't play) for $225 back in 2012. Playfield condition was good, plastics were bad, backglass had a crack in it.
Only woodrail I've had. Local players I spoke with had no interest in the woodrails, even if they liked EMs in general.