Ofcourse if you look at the exclusivity (188 vs 25) I understand your point but still a SS version is as beautiful as the Tantalum imho .
I am not familiar with the email you got from them so I can’t say if its fair or not .
If i was in the market for a Gronograaf i would have been happy with a steel one as well .
I opted for a steel Remontoire over a gold case back then and the price difference wasn’t that much .