Funny. I did just that the other night. I dreamed I had a pair of AKG K271s. I once had a minor obsession with owning that headphone (no clue why, and I never did get them). In my dream they had more bass than my SRH440. I have no way of knowing if that's true or not, of course. I've heard that both are considered to have tight bass (accurate to slightly light but well controlled is how I read that), and I consider my SRH440 to have just the right level of low end, though extension is just slightly lacking. Maybe I'd like the K271 after all.
You know you're an audiophile when you're in analytical, critical listening mode even when you're dreaming of headphones you've never heard.