I didn't read many of the responses, nor do I need to. If you do not know how you want to collect Morgans, you aren't ready to collect them. You obviously aren't going to be happy with multiple grades by your comments, so it is up to you to set a goal. Not the consensus of Coin Talk.
If you can afford a collection of MS65 Morgans, go for it. I would just try to fill as many slots as possible.