Um, dunno the weight, I've never been too fussy about these things. I always figure if I tried to make a bike really light weight then it will be too easy to break and be ridiculously expensive too. I'm not a heavy rider, I just prefer durability over superlight equipment.
I got an email from fanatec too about that base. Too bad my old wheel still functions 100% so unless I break it on purpose I don't have any good excuse to invest 1000€ for wheel+base combo...