Who is your next Holy Grail you plan to get and why? My next grail is Primal Prime because I've always loved the mold but I think it looks so much better in blue and red and the fact he's a living matrix is awesome to me. Plus I gotta have someone for my Cryotek to be paired against. My current Holy Grails are: Universe 1.0 Nemesis Prime RiD Cryotek Sam's Club RiD Yellow Optimus Prime Omega Prime (using yellow RiD Prime & Car Robots God Magnus)
I wouldn't say grail, but my next big purchase probably for Christmas will be Classics Henkei Megatron
Right now it's RotF Long Haul. Oi, I cannot find that sucker anywhere. A slightly more ambitious Holy Grail would be RID Scourge. I hunt for a cheap one on EBay from time to time. And it would be nice to get an RotF Prime sometime but I'm not exactly rolling in excess funds.
Having just FINALLY completed Overlord...I'm not sure! Victory Leo & Monstructor are on the longterm grail list, but I think I have more luck chasing down '89 Pretenders besides Bludgeon & Octopunch (already have them) as well as my last '88 HM, Siren.
S.T.A.R.S. Command Center & Transformers Tyco Slot Car set I'd say Bumper too, but, well yeah, Bumper.
G1 Bruticus. Not going after that for a while (taking an overdue and much needed break from collecting).
tru insecticons. basicly every g1 toy (that was in the show) is my grail, and i very, vey close to having them all ( i only need like 7 more to have them all) but i dont want to buy used and im not paying $150+ for the takara reissue so i am very excited!
MISB THS-01 Galaxy Convoy, especially if it doesn't go for a very high price like they have of late on eBay, and one of the G1 Prime/Convoy black repaints (I'd been hoping eHobby would do one, but so far no luck). Eventually, a good condition and complete G1 Devastator, Wheeljack, Mirage, Sunstreaker, Reflector, (grr had them as a kid but who knows where they are now), Snarl, Sludge and Swoop.