the first doctor was correct, hamsters only live three years in average, and to be honest, hamsters don’t “love” their owners, only the owners love their hamsters, it is worthless to spend a huge amount of money on it to have a surgery. the second doctor only wanted to make money. lives are not equal, for example pandas worth much more than a rat. only dogs love their owners; pets such as reptiles, insects and hamsters don't know what is “love”, and don’t have any emotional feelings. the first doctor know this truth, so he/she doesn't want you to waste money. don’t be sad dear, hope your hamster rest in the heaven now.