Something must be wrong with me! I am 45 years old and was walking through a Walgreens today when I spied Thor Valentine's Day cards! And I was excited! Good Lord! Of course, since the beautiful wife was with me I couldn't actually purchase them. I'll have to return and do a sneak buy!
No, there is nothing wrong with you. I do it all the time with Marvel Universe and Legend action figures (and I'm 39). One time I came home with the brand new Millenium Falcon and the wife was cool with it.