Oh i'm still around, just busy with work travel and family everything (sports mostly). I read a bit but have far less time to post. Still looking at changing around some A/V gear in a major way in the next year though.

True, many of these wines are not meant for cellaring and in the latest tasting notes for the Cakebread chardonnays it doesn't mention anything, but the label on the back of this 2005 specifically stated it had the potential for good ageing. On some later years it specifically stated ageing 3-5 years so i could use that as their benchmark thoughts on it.
https://www.cakebread.com/wines/release/napa-valley-chardonnay-2010
https://www.cakebread.com/system/uploads/release/fact_sheet_pdf/43/09_CH_w_logo.pdf
Typically i will buy two bottles, open one right away and if there is astringency, sharp acidity, or heavy alcohol or other negative traits, i'll leave the second bottle to age for a bit and see what happens with it (red or white).

Normally i would not have held onto it for much beyond 6 or 7 years but i'm a bit behind on drinking the 'old' bottles in the cellar. One waits sometimes for too long to find the right occasion and next thing you know you've got old bottles you are worrying about going bad.

A friend who has some bottles in our cellar is seriously in danger of that circumstance. A BC pinot noir from 2006, a Conundrum from the same era (this is the newer bottle but i believe it is the same thing: https://www.lcbo.com/webapp/wcs/stores/servlet/en/lcbo/conundrum-white-2016-694653)
Some of these were not meant to be cellared at all and i fear he's going to find vinegar in a few of them.

I think the oldest bottle of red i have is a 2002 Lehmann's Mentor followed by a 2004 Wolf Blass Black Label (this is a beautiful ageing wine).
The oldest white might be a 2002 Zen Zen riesling. It is a 30-year ager according to Dr. Zen Zen himself.

"Those who preach the myths of audio are ignorant of truth."