Luckily Toku toys aren't as impossible to find as say a complete G1 Transformer. But probably the only thing I can think of that classifies as a 'holy grail' for me:

http://i.imgur.com/ty99U.jpg

And it's TJs fault I want this so bad

http://www.youtube.com/watch?v=xRENI5JUmt4

Some of the Imagin Figuarts are up there, but I'm hoping the costumed ones we saw at Tamashii Fest are hints at some sort of reissue.

The material for the costume damages very easily. Which sucks when you have a figure like Gridman that has different armor pieces you have to attach to the figure yourself. Otherwise they're nice enough. A bit outdated perhaps compared to modern 12 inch figures.

grail i want dx revolver mammoth grail i got dx daibouken black think they would look great together

http://i159.photobucket.com/albums/t142/sokutai/a18.jpg

mine for the moment would ave to be a Decadriver and Ktouch set, ive come close to getting one twice but something always keeps me from getting them

and following very closely is a BOJ Dinobuckler or MMPR Power Morpher

For its a 2 parter one i have the other im still seeking, the scyro servo aka thunder gridman(witch i have) and the the drangon thing i forget its name.

just found it on ebay mostly complete but its a good place holder, the part needing replaced i see all the time

An Adult DX Den-O Driver & Dragon Rangers Changer.

SIC Tamashii Web Exclusive Emperor Form Kiva.

Hmm...

Figuarts-wise, I'd probably say Kamen Rider Joker. It used to be Skull, but days after I decided I wanted him I found Skull Crystal at a decent price on eBay.

Otherwise, I'd say a (non-Korean) Double Driver. Or Lost Driver. Either one.

power rangers turbo megazord. But thanks to someone here, he might be on his way soon.^^