Yeah, this has been really frustrating for me, too. I've been trying to buy a Compute Module 4, and everyone is sold out of that as well. I'd be perfectly happy to even pay the full price to place a backorder, and just wait for them to ship it to me whenever my order hits the top of the list. I don't want to keep checking daily to see if anyone has something, and then click through to each of 5 different retailers to only find out that they've sold out again in the time it's taken me to click through. It's such a waste of time.