I am constantly cycling through hobbies, I get obsessed about something and then cool down on it...then eventually get back into whatever-it-was. The neat thing is that by the time I cycle back around to something, I've tried new things and learned new techniques that sometimes inspire something I would not otherwise have thought of if I hadn't allowed myself to wander down a different path for awhile.
I do sometimes feel a little guilty or annoyed with myself when I spend a lot of money on a hobby RIGHT before I burn out on it, but then when I come back around to that hobby later I dig out all this NEW stuff and feel like I found treasure! So I figure it all comes out even in the end and let myself follow my inspiration wherever it takes me.