Hopefully you don't regret the decision in the future, but as far as crafting the full classic collection in golden, unless you already have a bunch of them in golden, you're going to need a lot more than 180k to get that. It's nearly 250k just to get one of every classic card, about 400k to get the duplicates as well.
I always dust all rotating sets when the year rolls. Never has been an issue. I have absolutely no interest in wild whatsoever, never have. I only play battlegrounds and standard, and always will. Was the same with MTG as well, minus battlegrounds of course.
Guess you are one of those people who complains about duels being pay2win because it "needs" wild cards