My group is still playing 3.0. I bought the 3.5 books and as a group we looked over the changes and decided 3.0 was better. We thought the "power up" spells were OK. Don't like S,M, L weapon changes. Really don't like the fact that 3.5 came out at all just to make additional sales.
The final result, no one has bought a WOTC product since 3.5 came out.
The final result, no one has bought a WOTC product since 3.5 came out.