Why does Sony fail at making another mega franchise?

[homer]

Zipper said:

Sony has been in the console business for 15 year. 

They've created 3 amazing consoles, two of them being amazingly popular and one the best selling home console in the world. They own the most amazing developers, I believe today Sony is only second to Nintendo in  quality when it comes to first party titles. They created dozens franchises, some of them more popular than others yet only one of them - Gran Turismo, has been extremely popular and with Gran Turismo 5 releasing soon, we will see if the franchise is still popular as it was before.

I'm trying to think why, in 15 years, they couldn't make at least one extremely popular franchise among the dozens they've created? Even back in the PS2 era, Sony created some of the best titles on the system, but they still weren't crazy popular

Titles that are critically acclaimed - Uncharted 2, God of War 3, Killzone 2 - Why do they fail to reach their sales potential? It obvious the potential is there

Take Uncharted 2 for example. It the most critically acclaimed of the bunch, it has multiplayer, co-op and I can't take of a game that is more easy to market - yet it failed to make an impact and dropped of the NPD for good after one month of sales which weren't extremely good anyway

Why do titles like Gears of War (for some reason the eastiest title to compare to Uncharted) do so much better?

Why do titles like Killzone 2 which had a huge amount of hype and belongs to the most popular genre on consoles today failed to sell the millions everyone thought it will?

It an interesting topic I think we should discuss

I disagree with sony not being on par with Nintendo in terms of quality. Sony has created more new ips that have potential to become great new franchises than anyone else. Nintendo have become better than they were last gen in terms of quality though imo though.Sony has made more than one big ip btw. I recall Crash Bandicoot becoming quite large(look up the sales data) Also Spyro was nothing to sneeze at either. These two prove that milking can occur when a franchise becomes large (other examples being Halo,Call of Duty, and Guitar Hero) which is not good for anyone. Sales does not equal quality because if it did, Wii Play would be jesus.