Seeing as the new z97 motherboards are on the horizon, is it still worth buying a z87 board now? I've read a few articles which state there's not a great deal of difference between the z87's and the z97's - is this the case? I am a few days from which i plan to order my MSI z87 G45, but seeing as those these new boards are rumored to be on the shelves from June (?), would it be better to hold on to my cash and see what these have to offer?