Comment Options (Score 1) 89
Currently you can buy a version outright (say AutoCAD 2014 - you can use that version forever). Alternatively, you can get it on subscription (you pay 20% or 30% of the full cost, but pay it every year), which allows you to get the new version every year plus more support/features. Renting is simply the third option - the other two aren't going away. Their subscription model is a predictable cash cow at this point - there is no way they are giving that up.