Ok, here are my two cents about this topic. I am a woman, and I hate shopping, ok, I like to grocery shop because I love to cook, and I like to fabric shop because I quilt, but I am not a browser, nor deal grabber, I get what I need/want when I need/want it, my mom is this way too..my sister isn't. I know some men who love to shop for their hobbies, clothes or whatever, and shop deals and what not, I think the differences are more individually based than gender related, personally.
That being said, have you ever compared the prices of things like tennis rackets for men and women? I was aggravated when hubby and I went shopping to upgrade our tennis rackets, and to get the same quality rackets,mine was at least $20 more, and on sale, whie his wasn't. Got me thinking...