Thanks for your post! I learned a lot
I can see both sides of this character thing. We just got back from WDW and while there aren't many roaming characters in general, we stayed at BCV and ran into goofy, donald, minnie and daisy quite a few times at the pool/beach and my kids absolutely loved it! We are planning our next Summer vacation (at DL) already and roaming characters were really magical so I'm definitely looking forward to how that works at DL.
On the other hand my son loves Sorcerer Mickey and it was so awesome knowing he would have that meet and greet at WDW and he did love it. My daughter loves Minnie but pretty certain seeing Minnie won't be an issue in DL =)