I think if you're heading out right now to buy sealed pairs of either or both of these models as investments you're foolish. Buy them because they're priced right (now, at least) and you like wearing them (or you just like them). I can think of easier ways to double your money on a $150 investment over 20 years.
That being said I may grab another pair or two to complete the set, already wear the ones I have and would do the same with any new purchases.
That being said I may grab another pair or two to complete the set, already wear the ones I have and would do the same with any new purchases.