I know a couple of other people who tried to consign BTTF items in this auction and PIH never got back to them.
I contacted PiH in September through their online contact form with info about items I was thinking of possibly consigning, and had no problem getting a friendly and helpful response. One item they weren't really interested in (and I can't blame them; it was more of a contemporary pop music item which would fit in better in other auctions), and they wanted more information about another. I e-mailed links to pictures and screencaps and gave more info about the item's provenance, and they decided to accept a shirt worn by Michael J. Fox as Alex P. Keaton on
Family Ties for consignment, which is now Lot 556 in the upcoming auction.
For me at least the process was quick and friendly. They responded to the web form inquiry within a few days, and to subsequent e-mails within a day. I've consigned at two other auction houses before, but I liked interacting with PiH. Very nice people.
Anyway, as for the BTTF stuff--I have to say that Biff's underpants would make a heck of a conversation piece. :lol It reminds me of the charity auction just after the first season of *Breaking Bad* which offered an autographed pair of Bryan Cranston's screenworn tightie-whities. I so wanted to buy them because the scenes of him stuck out in the desert in his underpants were hilarious, but unfortunately my uptightness got the best of me and I didn't bid... I still occasionally regret it because the odd surprised look on guests' faces when they'd have seen autographed men's underpants up on my wall could have been fun.
I've always liked those future Pepsi products, but the future Slurpee looks even cooler. I'm sure that will sell high. I'm more of a costume collector though, and I'm surprised by how many BTTF costume pieces are in this auction. Very nice. The Spike outfit has a an awesome retro-future look to it...but if I start to fill my walls with too many leotards and underwear, people might get the wrong impression. :lol