I think we're going to get the bands since we will definitely be using Memory Maker and I have a bad tendency to misplace things

. I could see myself losing the card. I understand the lanyards, but for some reason they bother me (just a personal quirk).
I am assuming that I can buy the bands whenever (traveling early March) and link them to our park tickets via
MDE? I plan on buying our groups tickets in the next few days, so I might just go ahead and get the bands from Disney.com
I don't have to actually deal with configuring them at the Park, do I??