You shouldn't. I know people in their 60's and 70's who collect Barbies.

Heck, I'm 34 and I collect Teddy Bears, and there are people who are far older than me who do as well. Both are highly collectible.
I have only seen pics of the Galadriel Barbie, but she is beautiful. Don't care much for the Ken as Legolas--the body proportion's not quite right for and Elf.
Nothing on my collection front except for more TCG cards. I am filtering through them to "weed out" (if you follow me) all of the Orcs, places, weapons, etc. to sell on ebay if I can. I try to collect mostly characters, 'specially Hobbits and ESPECIALLY SAM !
Come to think of it, I am trying to find a bear for my collection that strikes me just right to name "Sam"...haven't been able to find one, yet.