Like you said, each to their own but I dont see anything really wrong with it. Id be grateful for the thankyou as they dont come very often! Im terrible at taking ages to send them, I still have his Christmas ones unwritten in the drawer, I ended up ringing/texting around-Im guessing texts arent the done thing? 
I get so frustrated when my Mum goes to the trouble to buy all 3 children of one of my cousins presents for their birthdays and she doesnt get a thankyou, ever. But then, 4 years ago I wouldnt have even considered sending thankyou cards to people for birthday presents, its not something we did growing up.
Bobby - January 2007
M/C- October 2008, March 2010, May 2010, July 2010
*I am EmmaS but Hitched has taken me back to my old user name for some reason!*