yes, I have said that in other posts...you will lose the experience of the total game, but as long as others are on equal footing as you, you will not miss that much.
Being new to this game can be tough. Some of the items in ToA are incredibly powerful, and they shorten fights. They do create a gap between the haves and have-nots and the gankers and the casual player.
If you want to put the time in, you can catch up, but the thing is you have to do this for every toonn you create. You can play in NF on a regular server without ToA items in your template, but you will be a subpar toon. Truth is, without a buff-bot, you will be much worse than you would be without ToA items. Buffs are the single most important thing in the game. i would then rate group coordination as second (using ventrillo, having a main assist, each person knowing their role), artifact/RA/ML dumping as third, and skill as fourth. Classics help by eliminating two of these issues, but each person should make up their own mind.
I just try to give the pros and cons, and for a new person entering the game at such a late date, I think the pros of the classic are more than the cons.
Edited, Jun 28th 2006 at 3:00pm EDT by thuri