Just to put this out there....
Years ago I caught a 12lb Gar, and cleaned it. I deep fried the meat with sandies, and crappie, and kept it in seperate piles on the serving table. I kept an eye on everybody, and no body threw any fish away, so with the Gar only eating live food, I'm thinking those not wanting to eat them may have a perception of it not tasting good without actually trying one. They are tough to clean, but I have a better way.
The meat is not as flaky as crappie, but more like blue cat.
Don't knock it until you honestly try it.
It could be like paddlefish....you have to be ruthless in cutting the fat away from the meat or it will be fishy tasting.
I always wanted to try gar meat at least once,everyone who has eaten it has had good comments about the meat that I have talked too. Caught a huge gar on Hudson lake last year on a jugline,after pulling him up out of the water and getting a close view of his teeth,I decided to cut the line and release him back into the lake.