200+ lol...yikes...and Fonz is right, what happens if something happens; could end up in LL's doing 200+ deletions and blacklistings, or you forget to renew your domain (has happened before with others).
Keep it smaller and get multiple domains if you feel you will be making more gallery sites -- and sending them to 69toplinks of course...lol...just a little shameless promotion here
hehe..but anyways, yes, keep it smaller on each domain you get.