Pianoteq do not need much RAM, even for hungry piano add-ons.

That's very true. But I couldn't resist to write the "tons" joke.
And indeed, like already stated here, U4 doesn't use twice as many resources, just "more". Works still very fine here, so I'm all happy.

...

Today most people use computers with more power than required for pianoteq.

No, not all, yet surely many. To make all happy and make sure users who don't buy a new machine every 2-3 years (which, for 80% of all people would in fact be nonsense, yet nearly all do, and yes, I am aware some really need always the newest machine) would buy our great piano also - quite a lot of software, like NI massive or IK Multimedia amplitube and more, have exactly what you say - kind of "eco" and "normal" and "ultra" configurations. So people with newest machines plus 800 tons of RAM^^ could use the ultra settings, while others might prefer less heavy ones, using the best only for the finished song, maybe.

If, in the future, the new superb models would use more cpu, a little hint at the purchase section would be met with a warm welcome
Just don't forget there are people in the world who have to ask themselves a) a better machine? and b) ....or more superb software but still using the 6 year old dual core. That's reality for some of us.
But your idea is great, Beto-music. Options for hungry versions, why not?

I supose all models could have options for "hungry" versions.  if the sound can get better with more CPU power required (to computate more piano sound details) many people would be dispose to try.

Today most people use computers with more power than required for pianoteq.

Advice, forget about ye olde P4.

Chuck

Chuck