I see people make this point all the time and my usual reaction is "Well, so what?". If someone is happy buying gold and enjoys the game more for doing so, who the hell are you to tell them they are wrong? Pathetic argument, really.
I don't have an exact number without looking it up but I subscribed with tokens for right about a year and then unsubscribed until legion. I have plenty of gold left to do more when I come back. I have a reasonable expectation that Legion will be pretty much a B2P affair for me.