Actually, the best part is this statement:
"Purchasing a permanent license will have automatic maintenance renewal enabled by default at the maintenance prices listed above, however you can opt out during checkout. Users who have previously bought a permanent license will be able to purchase a full year of maintenance at any time after cancellation if they would like to receive new software updates."
You can't get any better than that*. So, you pay for the full license and then at any point "in the future" you can get the current version for the cost of the SAME annual maintenance price.
That just makes my hobbyist heart sing out loud with joy.
Dave
*Now...for the TFD people out there you may be wondering why I am not including the years of free maintenance provide by Jawset. Those contributions should not be ignored, and I have a great amount of respect for Jawset's founder. So maybe it is a marketing issue with Jawset more than anything else, but I have always viewed those updates as actual "maintenance", that is keeping the program running well within each host application, rather than an upgrade with new features. What JangaFX is offering is the ability to get new features with future releases after years of NOT participating in the maintenance program for the cost of one year maintenance (eg. the modo model).