When I switched from Linux to Mac for a while some years ago, I felt the lack of easily mounting sftp as gnome does. So I found Expandrive did that very well. $39.95 seemed a bit steep for such a simple thing, but whatever, it was working great and I paid that. Few months later came out the next version and it turned out upgrades were not included, and now it's $49.95. I thought - whatever, I'll just keep using the old version because it was working quickly and flawlessly. Then all of a sudden previous version had minor update and it started lagging and randomly disconnecting. Meanwhile they kept spamming my email about sales and offers, ~20 times since then, pitching how it's dramatically faster now etc. I can't prove they purposely fucked up the old version, but it seemed really weird when it started to have problems right after new and more expensive one came out, and I'm not planning to use it ever again.