Can't argue with that line of reasoning Poet.

It will be handy to have another person or two with tanks to facilitate runs when there are 5-10 folks on-line. One of the more significant reasons I have made the effort to level and gear three toons is to be flexible in filling roles to make 5, 10 or 25 man runs viable. If we had 50 active raiders there would be less need for that. Although, it could also be said that when several people have multiple moderately to well geared toons you'd then be in better position to field 2 or more raids simultaneously.
Thanks for the willingness to be helpful Ira. Soon dual spec will better facilitate flexibility.