I live in Vienna, know the Steinway flagship store and its current manager as well the independent previous "Steinway Austria" label the store was run under. I also know that this store is a 50 meter walk from the opera in one of the most central and tourist overloaded parts of the inner city. Unless you put stringent access policies into effect, that store would be overrun by thousands of people every single day, none of whom have a true interest in buying any of the grands, let alone the Spirio D that clocks in at 296,000 EUR.
I run a boutique piano store in Vienna and my flagship is a pristine and unique Steinway D from 1887, the only one left in its original condition and carefully vetted by a superb technician. I don't do walk-ins and only let people play the piano when they can show a true interest and purpose for renting that piano (It's not for sale).
Vienna has a lot more interesting piano stores and semi-private collections than any other city that I know of, but they don't necessarily advertise to non-buying non-customers. Which leaves the flagship stores of the known brands - and each and every one of them is tired of dealing with tourists wanting to play their pianos without bringing in any revenue.
Edit: Two paragraphs removed by @Mods
