Don't know what is going on with some eBay sellers these days, but these high opening bids are getting out of hand.
Case in point, someone is selling an portable Ironrite ironer, that has clearly seen better days (broken form plate, missing safety release, and more defects), for an opening bid of $300.
I gave about $50 or so for mine and it is in damn excellent condition and came with original dust cover.
Either times are getting tight out there, or people have a very high idea of what their tat is worth.
As for the freezer, don't think it would take more energy than one of today's units. After all it is meant for long term storage so one shouldn't need to open it that ofte, maybe once a day or so, perhaps more often during the summer if ice cream and other frozen goodies were stored down there.
L.