You have to have useful and/or entertaining software for it
By developing something real "new", we could have way more "fun" than running 10 years old apps... Look at MacOSX: who's running OS9 apps today (and I believe there are a lot more than 78 000 apps for pre-OSX...)
OSX added a lot more...
Yes, it will take time. But the sooner we start, the sooner we'll have fun again... And the sooner we'll get rid of this old, old, old API, which was designed for old hardware, without portability in mind,...