I think the solution to Napa aging is just drink them sooner. If they aren't going to get better after 7 years or so (which is pretty typical, it seems), then just drink them then.
Frankly, nothing wrong with that. I don't see much intrinsic value in waiting to drink something unless the pay off is stupendous, and that is pretty rare (but I bet you Franco philes won't admit that
) I've got one Continuum from '09 that I'll probably drink next year. 9 years old, which would be young for Burgundy but that doesn't mean it won't be good!
The big problem with the Napa juice is the lack of history. Lots of the top wines from the 70's and 80's supposedly aged great. Not so much with the 90's. I've heard the '03's and 04's are drinking well right now, so less than 15 years and not sure how much longer they'll be good (I don't personally own any so I can't test this). Just not a lot of data sets to really know; and the science behind a well aging wine is somewhat murky. I did open an Elyse '95 Red Table Wine that cost $5 last year and it was still actually good. fruit flavor profile was still bright and it had that lovely dusty/earthiness only age can seemingly give a wine. fun experiment.
My problems with most Napa juice is the $$ and the flavor profile not being what I(or my wife) typically enjoy. I don't hate the high alcohol, but can't stand the syrupy/simple taste this is so upfront in a lot of the wines. Rather drink Washington reds, in general.