I have been working on the collection since release, with admittedly horrible pack luck, and I’m still DeGrom away from being done (So......close.....). I have probably spent a 1.2 million stubs to get to this point, I’ve chased every free stub, xp, or card I could, and I have sold pretty much every asset I’ve acquired.
Not to discourage you - if you want it, go for it. But go into it with open eyes - it’s a marathon, and once you start down that path, you’re kinda pot committed (the only reason I haven’t gone mad is because there haven’t been many great cards to spend stubs on anyway). And my take on AL vs NL: Sheffield is better than Biggio, but AL has more useable players on the way to Biggio (Trout, Wagner, Aroldis and Giambi are all in my lineup...nobody from the NL is).
Do whatever will be the most fun for you...good luck either way.