Personally I'd go for the old job. Sure you'll miss flying but you won't miss all the horse-hockey that went with it. If I were in your shoes I'd take the old job and, like the rest have said, fly for fun. I'd love to have that opportunity myself.
Tell you what, when you start to miss it, someone here will call you up and pretend to be crew scheduling and junior man you to Keokuk, Iowa, where you can spend the night in a Motel 8 and have all those fond memories come flooding back to you. I'll buy you a gas station egg salad sandwich to round out the completeness of it all.