A99 jpeg at ISO 12800 Hong Kong Night Scene

Could probably match this with my A77 at ISO 1600 and 1/40, based on your EXIF information.

Yes, if one can stick to eg A77 at lower ISO and it works, changing to A99 seems not so worthwhiel though one may get other thing and I think AF range setting is one of the best features and it beats Canikon hands down so far.