[frolinmod]

Note that the add-ons have no subscription fees. They're all integrated into TheSkyX (i.e., are already in there and all that is needed is a license key to enable them). Also you only need to pay TheSkyX's subscription fee if you want access to TheSkyX updates. Otherwise just don't pay it. Your software will continue to function just fine. Nothing bad will happen. And if you later change your mind and want access to TheSkyX updates, just pay your back subscription fees. Note that the subscription doesn't even start until and unless you register the software (which happens automatically at purchase time if you buy direct online from Software Bisque).

Also, SB's licensing policy in practice is extremely user friendly. They have a license key, but have no draconian enforcement with hardware checks, dongles, expiration dates or anything of the sort. It's up to you and your ethics to abide by the license - or not. You're only supposed to install on two computers, but you could actually install on an unlimited number of computers if you really needed to. Where I come from that is a breath of fresh air.

I like TheSkyX a lot. I think it's way better than TheSky6. I use TheSkyX to operate a Paramount ME, I use it often and I use most of it's features in the process. I also keep up-to-date with every single new "daily build" as they become available. TheSkyX has way better ASCOM support than TheSky6 ever did. There are also a bunch of X2 plug-ins available that just plain don't exist for TheSky6. TheSkyX is under active development. It gets better and better all the time. TheSky6 is not only dead, but it's been dead for a few years now.