I really love the new plastic lord of change model, and I would love to build and paint it, but I know I would be temped to build a whole tzeentch army around it and like all other new armies I would give up halfway through when other new shinies come along. Though I'm assuming with the new chaos demons codex I could have 1 army that I can play in both 40K and AoS? And I do have all of those Tzeentchy things for Silver Tower just sitting there, staring at me...
Same goes for the big plastic knights for 40k. I daydream little fantasies of having an army full of like 10 of them stomping everything.. along with a couple of FW reavers and a warlord titan mixed in too for spice. That's my won-the-powerball army.
And then there's the all big mech Tau army I wanna to do, with FW models mixed in for spice too.