With NCs, IMO, the difference is with the premium vs. non-premium. I generally find that the premium cigars of a particular brand don't age well, PAM, Anejo, etc. because they are already aged. The lower lines tend to benefit more from the age , so take a Padron '000 series, throw it in the humi for 2-3 years and it tastes like a PAM. Opus are a general exception, at least to me. I like them so much better after a couple years. I have some CAO Brazilia Gols and some 5 Vegas Limitadas that have both been sitting for just over two years and are smoking beautifully right now.