Kinda finishing up my part in this thread (may still post, but not as much)...
Levyathan - I can sympathise with the loss of a dog more than I can sympathise with the "death" of a Tamagotchi because...
1 - The dog feels pain, the Tamagotchi does not.
2 - Dogs are (for the sake of rounding things up) programmed with more advanced companionship with humans, they provide more positive stimulus for a human being.
3 - I've been through the loss of a dog myself, I can't say the same of a Tamagotchi.
4 - If a dog dies, that's it. Its physical existance decays and its personality ceases to be. If a Tamagotchi dies you reset it or replace its batteries (AFAIK thats how they work?) and you have another go with them. They develop no personality and their physical form remains unchanged. If you were to damage your Tamagotchi then you could buy another one and the difference would be un-detectable.
I hope that helps answer any questions
an0n - no.