Sad to see them go. Way back in "the day" I was on the other side of the Kagi divide - selling shareware and using Kagi as my credit card transaction company. They did quite well for me, through three different products, and were always fair, friendly, and stayed completely out of the way when I didn't need them. I've been out of the shareware game for many many years now of course, but even two years ago was still promoting Kagi when talking to developers who wanted someone else to handle their payments but didn't want to deal with one of the app stores.
Ah well. All good things must end at some point, I suppose. I'll pour one out for Kagi tonight (way too early to drink today still).
Just went to renew some shareware (Northern Softworks * Cache Cleaner) I own that used Kagi and PayPal, only to find there's just PayPal as an option now. So sad! I refuse to use PayPal, as I have had two (out of two) experiences with them, both losing me thousands of dollars in fraudulent charges on my BankCard, causing closures of accounts and forcing banks to retrieve my funds. So many shareware programs via Kagi. Which programs (3?) were yours? I may have owned one or more.