I like what you say here especially 1 cor 17.
I also want to point out that Jesus said "keep doing this", where did he say that it must be done that same DAY yearly, and that it must be after sundown wherever you live? I got such a laugh out out watching someone run out side to make sure the sun had actually set. If they took it as seriously as they make it out to seem, then it would be after sundown in Jeresualm, no?
I mentioned this to my wife last year, becuase they had so much trouble fitting all the congreations into a building that had enough room.
They make such a point about the jewish days being sundown to sundown, why not have another meeting the next day before sundown?
If you have ever been in a large town, finding room for everyone is a big challange.