Well, I posted my story a while back on DPReview,
I read everything there is about the FF cameras. Even subscribed to a few pay-to-read sites. I had 3 choices A900, 5Dii, D700, and I had the money. Then, I sold almost all my Pentax gear (only a few lenses were left, and only 43 was worth keeping).
Then after comparing prices, lens line up, and many, many other factors; I decided to get the Canon. I pre-ordered it.
While waiting for it's arrival (2 months) I read more, and more about the FF Canons... and their awesome possibilities
Then I looked at my own photos, what I shoot mostly, and the Pentax lens line up... (I shoot almost always in good light)
The Canon arrived!
I passed on it, and gave my position to the next guy in line (there were over 200 in the waiting list locally, I was #3 on the list)
Bought a K20D, and stock up on lenses again
I've shot many, many times with 5D's and D3's ... the grass is not always greener on the other side.
I now have the following lens (almost all bought back within one month)
- FA 20-35/4
- FA 43/1.9
- DA 70/2.4
- A* 200/4 macro
- F* 300/4.5
(planning to get the 50/1.2, 1.4XL)
Bodies: K20D, LX film, DS InfraRed
All the above lenses are as good as ANYTHING Canon and Nikon have. And Image Quality will match if not surpass theirs in good light.
Believe me, and I've done extensive research on this; The Image quality out of K20D plus FA31, FA43, A*200/4, F*or FA*300/4.5, DA14,... can be in almost 90% of the time better than the D700/5D images. And the higher rez cams (5Dii, A900, DX3) are having major issues with average lenses, and if you want to get similarly good images out of them (compared to K20) you will have to spend 10's of thousands $ in lenses.
My whole kit; K20D plus lenses is about the same cost of the 5Dii with ONE kit lens !!!
However, that's just one guy's story
p.s.
I would keep a Pentax body forever, just to be able to use the A*200 macro