True. 7 years i think between those two? besides Galaxy 1 and 2 there is too much time between 3d mario games.

it depends, even though annual series need a break sometimes, just look at Pokémon, they kept releasing games one year after the other for 3/4 years but at the end they messed up with ORAS, and now ofc we have a one year break so that the next game doesn't have ORAS' problems

Wait a few years, even if they can keep the quality up on yearly franchises. Got burned out on Call of Duty and Ass Creed last gen. Now i doubt, i'll buy one of those in the near future.

I'd count those things as expansions since they all belong to the same game. Main game = new number.

Well that was before my gaming carreer. Still cool though. They should do that again.

I don't mind waiting, I can wait years for the next entry to come out.

Ratchet & Clank kept a pretty high quality with almost annual releases for about seven straight years. After that people shit talk the experimental games, but even those were well made games, just at a lower budget because Sony. It's definitely possible , just really rare. It takes a certain kind of company to do that, but it's nearly impossible to do in the 8th gen successfully because of the amount of resources it takes to keep up that quality annually. 

3 or 4 years seems to be enough. It's a good time to release a sequel with better graphics and new ideas. Annual franchises are just stupid. Instead of endless sequels, developers should work on new IPs.

Doesn't matter, if they can keep the quality high then its irrelavent. 

I prefer years between so I don't have to switch to the next one so fast and games tend to be more polished with new ideas

That said, it's not like I don't like annual franchises..