I'm not a fan of Sketch, as I haven't used it, but why is this a bad thing? From what I read on the linked article, the software will still work...
Is this a subscription?
No. Once your license has expired you can still use the app for as long as you want. We will not force you to pay again to use it. You don’t have to renew your license if you don’t want to.
Also, iDraw is now known as "Graphic"... https://graphic.com ...but I'm still using iDraw.
As for Pixelmator, I'm not sure why $99 is shown. It's never been more than $29.99. (At least, not while on the Mac App Store.) Sometimes it's $14.99... http://appshopper.com/mac/graphics-design/pixelmator
Nice organization though! That's a good update to the first post.