Yeah, I switch projects a lot, too. Except if I have a dealine like a birthday or Christmas. I've had two scrap quilts in progress for years now, and i don't consider them lost causes!
Love your block and I would be working on it to get it done because it is beautiful. I rotate if I get bored or tired of working on one but not in any certain order.
What a gorgeous block! Just think about how much you will enjoy it when it's done! I get so obsessed with finishing things, I don't think rotating projects would work for me!