so, asrock is coming with a 13 gpu + 1 extra gpu possibility through m2, which gives a sweet 14 gpu motherboard. details see over here, https://bitcointalk.org/index.php?topic=1939165.0
both amd and nvidia are rumoured to come with mining gpus (limited warranty of 90 days, no output).
i guess gpu mining will get more mature.
i am still even mining with a couple of 280x, 7970s and a 390x in my rig. lots-o-watts, but with the current prices, it's still worth it, so i prefer to wait a little more and continue mining with these before changing for other hardware until the next batch of 14 gpu mb's & mining gpus or vega s will be available.
i'm wondering, how are you guys going to prepare for this, roi wise speaking, with current mining rigs. do you set goals for yourself, when to change to more new and optimized hardware?