This sort of broke the software app business model. One low price for an app for life. Then doing the upgrades to each new version of OSX costs a lot of money.

This sort of broke the software app business model. One low price for an app for life. Then doing the upgrades to each new version of OSX costs a lot of money. No wonder many companies go out of business or try to avoid developing for the Mac? Adobe gets around this by offering Cloud subscriptions, paying a monthly or yearly fee to access the software.