Zelda is one of the most successful, oldest and critically acclaimed game franchises of all time.
I think as an IP it is much more a testament to the strength of the IP when it has endured consistent success for 25 years+ than something that has only achieved success for a short period of time.
During the 90's Crash Bandicoot sold more than Zelda but despite that which had the long-standing appeal?
Uncharted needs to remain a popular IP for much longer than it currently has for it to be a more valuable IP imo.