I said this somewhere else, but I'd like to meet the person who, given no logistic or economic constraints, would choose a DP over acoustic
Gladly and without hesitation.
The nostalgy factor aside an upright piano or grand is a very limited and impractical instrument.
Even if I had the money and space I probably wouldn't consider buying a grand piano.
It takes up a lot of space, it has to be maintained properly which adds to the cost of ownership it isn't in the least portable and you only get one kind of sound.
It's the real deal, yes but taking your point farther I'd need a whole bunch of instruments to even come close to the kind of versatility a Nord Stage 2 or a good controller plus PC offers.
I'd need several Bösendorfers, Blüthners, Steinways and several uprights, I'd need several Rhodes and Wurlitzer Electric Pianos a few hammonds and a whole zoo of analog monophonic and polyphonic synths.
If I wanted the original undiluted sound and the real experience I'd have to build a whole museum just to hold all of the stuff.
One Piano is simply not enough if you really stand behind your argument about reality and the feel of the original.
Want to play Rachmaninoff? You'd need a Blüthner Grand. Gershwin? Steinway Grand or Upright. Nine Inch Nails? at least a 303 and 808 plus several M20 and a few Moog. Deep Purple, good luck getting a real 500 pound B3 you'd probably have to pry it out of John Lord's cold dead hands (god bless his soul)
Unfortunately the whole argument usually goues like 'you should own one Piano, just any will do'.
I wouldn't want to play Prokofiev's 'War' on a Steinway Upright and I wouldn't play prog rock like 'Yes' on a Bösendorfer.
I also don't want to become a curator of a huge museum-like structure that houses all of the instruments I'd need to recreate the original feel and sound to the last detail.
As a famous austrian musician said. 'That Bösendorfer is great but I can't turn it down and I can't carry it around'
I like your analogy about simulators.
Would you argue that owning a Piper or Cessna is really enough to experience the whole spectrum of flying? Would a Gulfstream be enough or would I have to buy an Airbus A380?
A simulator might offer exactly the same experience as the original but it gives you alot more flexibility and it enables access to things you might never ever get to do in the real world.
I will never own even a Piper or Cessna but I could probably buy an hour of time on a commercial simulator or spend $5000 to build the best Flight Simulator setup possible.
I will probably never own a Bösendorfer or even a Steinway Grand but spending %5000 gives me the flexibility to recreate a lot of different sounds with an accuracy that's orders of magnitude better than the accuracy of a commercial simulator.
Or I could buy a piano for that price which would be a VW Beetle compared to a Steinway or Blüthner just so that I can say 'at least I own the real thing even if it's just a Ford Pinto'