Other marketers - to add or not to add

I have a few profiles on FB that I am growing to experiment with and I notice that alot of the incoming invites I get are from other marketers/e-whores.

Should I accept these requests or not? It seems that I could get some of their customers but they could get some of mine too. What do you guys do?

To be honest my accounts must have 200-300 invites for various things.
Just leave them, let it grow, by joining your helping your opposition
Unless your feeling nice ;P

I don't think you're necessarily helping the opposition because you're not going to convert for them on anything (and vice versa). I'm of the opinion that other marketers, in moderation, are good friends to have because you can strike up relationships with them and thus extend your network for invites to groups and fan pages, etc.

This is keyboard jockeying though^

Dont do it. Your "Friends" will get spam. Screw them. Only thing a few of them are good for is it makes you look active as they send you shit and tag you in photos of dumb stuff.