Edit: As an example: I would like one bottle of hand sanitiser. That should last quite a while (nobody needs boxes and boxes of the stuff) and it would be very useful. I cannot buy it anywhere either IRL or online. As a last resort I just checked eBay. I found a 500ml approx bottle of Purrell for £17. Insane but given it would be very useful to have I almost bought it. Then I noticed the postage price was £100. The crazy part is that this person has sold quite a few of these according to eBay. You can claim this is the free market and supply/demand etc.etc. all you want but that doesn't make it ok. It's still incredibly selfish behaviour.
Edit 2: Any explanation for the downvotes? I almost self-censored my comment on the free market as I thought it might lead to downvotes - decided to go ahead with it anyway. If you disagree with anything I've said starting a discussion is much more productive than hiding something you don't like.