Good move. I started trying to do research on this particular issue because I couldn't believe there, first, wasn't an option for Solid Edge where you didn't have to resubscribe in order to keep using the version you have installed, and second, that I'm still finding that there are no options I'm finding where my autodesk licensce isn't time dated. Even spoke with some product support lady who said that they no longer have just straight up forever product keys that aren't time dated, and she said this was to prevent piracy. Ludicrous. This actually makes it so the only logical option is piracy since you can still and always will be able to get ahold of cracked software. If I buy software, I should be able to use that software for as long as I wish. If I don't want to update to the next version, then I don't buy it. I still have Solid Edge V18 and a product key I have on, would you believe it, a floppy drive, so I can use at least a program that I built models on and can still open them. It's blackmail for them to hold your data, your hard work and time, hostage so that you cannot use it if you don't pay up again, when you bought the dang software.
Dude, I just want to stress, Solid Edge is far superior than both Inventor and Solid Works, for a number of reasons, the sheet metal environment is standing high above either one, no comparison. And if you can get a version where you won't lose access to it after a set time, jump on it. But you need to make sure you have the ability to create ordered parts. I say this because I guess Edge is now selling different packages where you have either Synchronous, Ordered, The ability to draft....etc. If you have to choose one, ordered. Synchronous may look cool, and you can do some quick basic design work in it, but it's harder to be precise and lock things down. Case in point, in the tutorials for synch, it kept saying things like "extrude out to about 17". I was just like" okay so later on, we're going to make it exact, right? Well, it didn't. I don't make cyclones to about 76" inside diameter and I don't have hole patterns spaced ABOUT 4" apart. Ordered is controlled.