The great 1971s has a “Retiring Products” sale on Renderosity. Personally I’d perhaps sell the items as a $10 bundle on another store, or even give the best of them away free as a ‘free trial’ for his content. Rather than delete forever. But there you go.
Some beautiful Poser stuff at 70% off, and his models toon very well in Poser 11+’s real-time Comic Book line-art. As you can see here from the sci-fi Angelfish, one of the models set to be deleted…
You may especially want the Crane (set for retirement), a useful accessory for 1971’s many airships and potentially also for boats.
The Jetbee (set for retirement) is also a nice Dieselpunk craft…
And the SteamBoat (set for retirement) is a useful generic small steam-powered two-man harbour launch.