I think everyone is quite right. I am 15 yet I still love tamagotchis and I don't think I will ever be too old, and my 20 year old sister still quite likes them too.
If you have a soldering kit, you could fix it, as that is what I did when my wires broke. However, if you do not, don't bother buying a set as they are quite expensive usually, if that is all you are going to use them for.
I have played it several times with my cousins and I actually found it quite fun. However, I think that you should have four people to play it, no less, or it will be quite boring. Also it is quite addictive.
I think all the tamagotchis I have (not many) are really great. But I think my favourite would be morino.
By the way 'jappyx', you have spelt which wrongly. But never mind. I am not here to correct peoples spelling mistakes.
I was thinking of getting an umino tamagotchi. However, I was not sure if it would be worth it, as they seem to be needy from what I have heard. Are they fun or what?