Why are eBay LP prices so high?

After years of considering switching to a Light Phone, I went to eBay to find a used one and was shocked to see the majority of listings are asking more than they retail new, some nearly $200 more. Thank goodness I found this subreddit (I am not a big reddit user, so it didn't occur to me until now to look) and found the Weekly Sales Thread. But I am just curious if anyone has an idea for the rationale for listing them so high? Is it because the bidding just drove it to that point, then no one wanted to actually buy them so they're sitting at that price? Honestly this a useless question, but I am curious. ¯\_(ツ)_/¯