I personally love my V5. It's basically a link back to V1 and V3, big successes with Ban Dai.
V1 with raising a pet, times 3 on the screen, and V3, with more codes.
Each version they had a different subject for your Tama. This version, it's family.
Bondings?: Families need to be tight. The better the family bonds, you know!
Dating Show?: To solve the problems of my laziness, and hey, some people need to use internet dating!
Travel Show?: Families go on vacations to get away! This makes it more family-like!
Only 1 Last Name?: Think of a real family, does every kid they have go to city hall to change their last name? Not exactly. (Especially boys.) And, the bright side is that you can have longer names in your imagination.
I hope I'm not offending anyone. I just wanna explain how it's a link back to some older versions and to explain it's familyness.