You buying WOTC minis? You gonna game with them OTHER than with the craptacular rules set-up WOTC has for their lame-ass game?
Well then, you're in luck because your figure diversity is more than you realize. The AF figures are REALLY close to-scale as are many AF items.
AF figures have long-seen a life within the old West End Games minis battles game (tabletop) and now they can live on with the WOTC game as well, witha little work, or if you're using the WOTC minis as replacements to WEG's minis for the Tabletop battles, then you're in luck because AF still looks good.
Yes, keep your options open young padawan. They'll serve you... Those cheap-ass AF figures will help supplement your armies, or your civilians you wanna off at random.