I worked at a shop that opted to adopt the Agfa Azura plate shortly after it was released. We switched from the Agfa Violet plate and chemical development to the Agfa Azura and a G&J Clean-out unit in mid 2008. Right after the changeover we had trouble matching previously printed pieces. I chalk it up to previous chemistry issues and possibly a change in the dot gain and the plate curve.
The maintenance time saved and the money saved on chemistry easily outweighed the increased cost of the plate material. The Agfa Azura plates were rated for 100000 impressions but we would routinely get between 150000 - 200000 out of them. The Agfa Azura plate required more heat to develop so the drum speed of the imagesetter was slower.
The Agfa Azura TS plate, their latest, requires less heat than the earlier version so the drum speed is back up again. My shop is currently using the Agfa Azura TS plates and has been since 07/2011. We are very pleased with the Agfa Azura TS plates.
One other thing to consider; Agfa is by far the largest player in printing plates. At the time we were considering a change from Kodak Elektra XD to Agfa Azura TS, Kodak was citing an aluminum shortage to justify their supply problems. The largest player in the printing plate market is far less likely to be effected by market forces from any direction.