At this point, it's cheaper to mine with ASICs. dGPUs should be pointed at something else.
Yup. Currently way more profit to be had with other algos, but I don't think that precludes another mining craze centered around ETH. It all just depends upon price. If ETH shoots towards the $1,000 range we'll see the same rush to pickup hardware even if the profits aren't what we enjoyed in 2016/2017.