I don't give a rat's ass about my average speed. I ride purely for fun. While I love climbing and don't mind suffering on a climb, I'm not into hammering on flat ground to the point of pain. Especially since I nearly always ride solo, so I never have the benefit of drafting. If I have to start worrying about average speed and trying to compete with people, I will get burned out like I did in 1994 when I quit riding hard and gained all the weight. I refuse to make that mistake again.
I couldn't have said it better myself!