To Gwaihir: GO BUCKEYES!!!! (Sorry, couldn't resist.)
To answer Gwaihir's original question, in my campaign we were using 3.0 Identify for a while. But it became a little tiresome for me to have to remember what magic items they were carrying that they had not completely Identified all the features of yet. So when a player pointed out to me the change in 3.5, I leapt at it gratefully. Now we use 3.5, and I have absolutely no trouble with it.
The duration, the expensive material component, and the limited number of items Identified limits overuse of the spell at lower levels. There's usually a little mystery about the stuff that they don't have time/cash to Identify. At higher levels, the party has bigger fish to fry anyway.

To answer Gwaihir's original question, in my campaign we were using 3.0 Identify for a while. But it became a little tiresome for me to have to remember what magic items they were carrying that they had not completely Identified all the features of yet. So when a player pointed out to me the change in 3.5, I leapt at it gratefully. Now we use 3.5, and I have absolutely no trouble with it.
The duration, the expensive material component, and the limited number of items Identified limits overuse of the spell at lower levels. There's usually a little mystery about the stuff that they don't have time/cash to Identify. At higher levels, the party has bigger fish to fry anyway.