Board Thread:General Discussion/@comment-33607762-20190414235054/@comment-33048115-20190415000837

Honestly it really depends on what your box looks like and whether you're f2p or not. If you are f2p and just want to get the most quality chances for your stones id say save for 4 year (or at a minumum until the gacha coins get implemented). On jp the coins came with 4 year but global timing could differ even though I wouldnt personally expect it too. If you are p2p or really love goku black then ofc feel free to summon on his banner. Also, given the large overlap between the saiyan day vegeta banner and the goku black banner on jp i would expect some variation on the global verson of the banner, so you would have to wait to see what the value would be based on global units.

tl;dr if f2p or just want best value wait for 4 year for discount step up multis and gacha coins with some really great featured units, if p2p or really love goku black go in as much as you like, even though the value is likely less on the black banner, even if only a little.