I'm kinda in the same boat as you. But with Mewtwo and Gen 3 on the horizon, I'm thinking about saving up a biiiiig stash.
I'll likely finish powering up my 95+% mons that I already started to lv 30, get a second gengar, and max my two B/C ttars. From the looks of it, I'll have enough after this event for all the above, plus a max M2, a lv 30 M2, and both beasts (sorry suicine).