I hope the A77 is just as good, as I just bought one.
Come to think of it, I reckon I'd be deceased before I got to 500,000 at the rate I take pics.-- hide signature --
A77 is good. Shutter rated for 150k, but had reports on a local russian forum from a guy that shoots sports, his shutter died after aprox 300k actuations. He mentioned that first electronic curtain was on, that has to do with the longevity of the shutter.
Regarding a900 I have my reservations, I'd be happy if my A850 will last me 150k.