Great posts, love all the responses.
I love each of my dulcimers but only have 2 hands so some need to wait their turn to play. I also have a McSpadden FM 12-W, a small Warren May - a ground hog more for travel, a new TK O'Brien I just picked up in the NC mountains, my first dulcimer, a John Naylor and the 'red stain' one - more for the kids to strum on or travel (a good dulcimer to learn all about fixing a dulcimer with). Since I have only been home less than a week, I am spending a good bit of time with the new O'Brien but will be playing at a nursing home in a week with the McSpadden. I did have them all down last night trying out their sound on a possum board, not sure that counts. Interesting discussion since if I was to answer a week ago or next week it may be different.
Every dulcimer comes with great stories and their own sweet sounds.