Re: Older ibanez sounds better?
Sometimes they do, it depends. Some finishes 'breathe' better and sometimes allow the woods to vibrate a little more as they continue to dry out over the years. That's a main reason people like the more fragile nitrocellulose finishes over the thick poly finishes (which last longer and offer more protection). Pickup magnets also lose a bit of their strength as they age, and with that their highest frequencies making them a little 'warmer', but again these are usually differences that you need meters to hear. Not always, but usually.
Unplugged and side by side a '59 Les Paul will sound much louder and sustain a lot longer than a new one, but that's likely because the quality of available wood that was on hand in '59 was simple better than it is now. (Original PAFs, while all expensive, certainly aren't all good!) Plugged in, the difference would be obvious as well. Does that equate to poly finished RG-5xx guitars from 89' to '14? It would really depend on the guitar I suppose. A good friend of mine has a nearly new '52 Tele, serial number in the low 2300's, and it is the absolute worst piece of crap I have ever played. It honestly wouldn't make a good canoe paddle, and has all kinds of age and pedigree at this point.
Anyway, 'older' doesn't mean better in an of itself. Better materials make for better products, as does superior workmanship: those would play more into the final equation IMHO.