How can buying a bag be this difficult?

Sometimes the internet can be a magical place of discovery and wonder. Other times it can be a bewildering labyrinth of cul-de-sacs and side alleys that lead you further and further away from the path where you would actually like to be.
I’m doing my Christmas shopping at the moment. This, rather depressingly, no longer requires going out. Instead I just type in the desired gift in Google and all the options in the world are open to me. That’s the theory, anyway. In the pretty firm belief that my teenage son never reads my blog I’ll let you into a secret - I’ve been trying to buy him a messenger bag. A cool one that a 17-year-old might like. So first of all I typed in “messenger bag” and this elicited a huge range of dull bags at inflated prices. So I tried “cool messenger bag”. Now I am given a selection of cool bags for summer picnics. Hmmm. “Rock messenger bags” fares slightly better. Here I find a range of band-themed bags (though none that would appeal to my son). Then eureka! I remember that he is studying French and decide to try “French messenger bags”. This leads me to an even more confusing selection of options including a You Tube video (in French) on how to make a messenger bag out of duct tape. So I try “theme messenger bags” and weirder still: I come up with “how to make a messenger bag out of floppy disks”. Everything now points to me making my own messenger bag out of bits of old rubbish lying around the house. Either that, or going out.
In case you are also looking for a messenger bag, here are some that a teenager might actually like:
http://www.inretro.net/dj-messenger-bag-beatles-i1724.html
http://www.munkeygames.com/shop/index.php?main_page=product_info&products_id=1227
http://www.inretro.net/rock-messenger-bag-the-who-i2040.html
Though of course, input from any teenagers who might be reading this would be very welcome!