We have had an elf at our house for the past 4 years and my DS, now ages 5, 8 and 9 all still love it and buy into it totally. I bought my elf on ebay and it has been the best thing ever. The boys friends love to hear what the elf has been doing.
Our elf, Caroline, was picked up by Santa last night and taken back home to the North Pole until next year. DD6 was very sad to see her go. She really loved her elf. Santa might have to send Caroline back to us a few times this year for a short visit. We really had a lot of fun with her.