What an excellent post! CA has said she does not want LP at the memorial, and whether we agree with what she says, or even whether she has a right to 'bar' someone from a public memorial, she has made her opinion known. Now it is all up to LP, isn't it? He can show up and try to get in, knowing that the cameras will be trained on him because everyone knows the Anthonys don't want him there. If he does that, the ensuing circus will pull the focus away from Caylee yet again. He will have tons of air time when he responds to his being asked to leave, etc. Everyone will jump in with how they feel about this and this forum will be difficult to get onto because we will ALL be voicing our opinions. That is one scenario.
The other scenario is that LP stays away from this memorial so the spotlight is on Caylee and only Caylee. The thousands of people who have taken this little girl into their hearts can either go or watch it on TV (if it is televised) and there will be no controversy - just a sad good bye to Caylee who captured our hearts back in July.
I agree with the OP, this will be a true test of LP and his reasons for still be in and around this case. I will be most interested to see which path LP chooses.