Obviously depends very much on the dealer but I have come across 2 dealers in my odyssey who would do that. One was the late Bob Griffin of Griffin Audio in Birmingham. The other is Andrew of Sound Advice in Sheffield.
Most dealers are salesmen first and enthusiasts second. They don't really give a toss about what they're selling, it could be washing machines.
Bob and Andrew took a longer term view of how to hook someone, that investing a bit of time, interest and kindness today will yield money later in loyalty. And it worked
Such dealers are rare but they do exist. Be careful though, they will get far more money out of you long term than an ordinary dealer.