Sometimes I've got a feeling that the game lacks of few things (especially horses!)
There's a good point. Does WFRP3 have anything on horses? WFRP1 had quite a lot on verious modes of transportation and what that meant if you had to travel long distances.
but I hold the view that the AT and GM's Toolkit should be included in the core set.
Not all of it needs to be included in the core set. My problem with both toolkits is that they contain some stuff that should have been in the core set, some stuff that is really optional (like all the weird super careers in the Adventurer's Toolkit), and some stuff that you want a lot of (the basic action cards in the Adventurer's Toolkit). The stuff you don't want drives up the price, which makes it a bad deal for the stuff you do want.
What should really have been in either the core set or the GM Toolkit, is the extra standups for lots of beastmen and other monsters. And what's still missing is standups for female and dwarf soldiers/mercenaries/watchmen.
It's not that what FFG has released is bad (other than the basic rulebook, which is), but that they made some bizarre decisions along the line.
Although now that I think about it, it does make sense: what they package in each release would have made a lot of sense if they'd been expansions for a boardgame. So FFG is unable to let go of the boardgame mindset for WFRP, and that's a shame.
In other words, I think that soon I won't be able to afford new sumlements - deficiency of money. And even if I'll be able to buy them I believe that our beloved game won't be comparable with things we got in former editions.
I still like the new edition, and money isn't so much of an issue to me, so I'll be buying everything they release. But I will keep complaining about the bad strategic decisions they make, and I'm also pretty sure that those decisions may cost them customers. And in the end, that hurts support, and therefore also my game experience.