I use outdated film for the simple fact that I home process color reversal and nobody is offering anything currently which I can process at home!
Perhaps If 64T would hurry up already, I wouldn't have to worry about it..
That said, I have processed agfa moviechrome at home in E-6 with very satisfactory results. I don't know if this film will deteriorate faster or not, but I'm taking precautions with the storage of all my film regardless.
Anyhow, If anyone has any of this old film, I'll buy it from you If you don't want it! :D Remember though, your selling it cheap because it sucks! ;)