I think we should have a Pandora's Box emoticon for exactly this type of thread. That said, I am pleasantly surprised by the responses so far.
In my experience, Wargamers can be very reactionary about any kind of change: search back in this forum, to the release of the new book, and you will find a well of bitter disappointment and anger; that said, once people have had a chance to get used to the changes, and discover what works and what can be salvaged, it will largely simmer down, and only the most rabid anti-GW agitators will keep repeating their broken record.
Bottom line, change is good for the game, it just takes us a little while to get over the fact we need to buy a whole load of new models, which are more expensive than we remember them being in the past!