Not What I'd Call a Treat

I got a kick out of a sign I saw yesterday. I drove past a McDonald's that had a sign saying:

Treat Yourself today!
Filet O'Fish 2 for $3

Filet O'Fish a treat? I can see calling an ice cream sundae a treat, a six pack of microbrew beer a treat. I can see calling a number of things a treat but Filet O'Fish sandwiches? I would never have thought of that as a treat. I can see thinking of it as intestinal roulette but not a treat. I'm sorry but how sad your life must be if getting a Filet O'Fish qualifies as a treat in your world.