While TurboCAD is not a subscription software service and doesn't require that you upgrade each year, they don't like it when you skip a year. It looks like you're still in good shape and can upgrade from V19 OR V20 to V21 for $69.99. For that, I'd go for it. See: http://www.turbocad.com/TurboCAD/TurboCAD-Windows/Upgrade/Upgrade-Center/TurboCAD-21-Deluxe-Upgrade For the Pro/Platinum version I'm running it costs me about $300/year to keep up with the upgrades which seem to come out each Spring. Usually each new version has about 8-10 or more key new features within the software itself -- plus upgrades to the 3D and rendering "engines" that run in the background. These are the same engines that run in the background of some of the higher-dollar packages and what helps the software to stay compatible with the mainstream packages as well. For Version 19, I sprung for the printed manual. It's the same manual distributed as PDF with the software, only printed and bound. Both have advantages like PDF being searchable, but there's still nothing like curling up next to a fire with an honest-to-goodness software manual. (geek humor, sorry) :-0 There is also a link to an online version of the manual as well as YouTube videos, etc. for training. There are also some non-sanctioned sources of help. I could look them up later this week if you'd like. Hoping this helps, Todd.