Pretty much what i'm doing at the moment, well aside from today when i was mashing that button for more pero puddings so i could complete my 200 streak. Also saving Ex cards to get a gold button or better from Kurito. I shall get that damn SR!
That said, i finally reached 200. So what happened was this:
-Went to box, got Jun Kohno.
-Decided i would use that 1$ to get another ticket for another try.
-Apparently the 200streak counts as my first gacha, so i bought 1$ for nothing.
-Got annoyed and bought for another 5$ to get a total of two event tickets more.
-Second event try, got Ran Sugimoto and no other event-box-only N or R cards -_-
-Third, got Ayu Furukawa.
Did not get any limited SR, but oh well, got an N and R card at least. However, i do feel kind of tricked about that promised 100 point cost on first purchase...