As a pro: I love the 1-2 year life cycle
As mirrorless cameras get cheaper and faster, I can definitely afford $650 aps bodies and $1600 FF bodies every year. Knowing I can get the best IQ and fastest AF for relatively low price is a great deal to me. Any pro will be able to carry 2-3 bodies or more at events when this time comes.
I am so tired of carrying a SLR around, looking forward to lighter cameras and lenses. Now where are the smaller flashes?