You're welcome! I have to say that it is subjective. The more I wear current formulation, the more I like it...and it's guaranteed fresh!! If you are determined to get Vintage, make sure the seller is very reputable and has a solid return policy.
The problem is a lot of the juice you find out on eBay from several decades ago has not been stored properly and you get poor quality juice. This is true with fragrances even 10-15 years old, let alone 20-30 years! I communicate thoroughly with sellers prior to committing my time and effort (and bids). Know what you are getting or know that the person you are buying it from is a true professional and has integrity.
Personally, after wearing the current formulation numerous times in the last several weeks, I don't believe spending a premium on old juice that may have gone bad is worth the time of 90-95%+ of the folks out there. My situation was specific - the seller communicated very effectively and I bought it with confidence. It was wrapped very professionally and shipped within 24 hours of purchase with tracking and explicit communication from the seller. I love what eBay can offer, but you must be careful.
Also, do you want to smell like old-school, vintage moss-laden fragrance? If you look at the numerous threads (including mine), you will see that only people who want the heavier, darker and greasier scent are considering vintage. It is not wearable (IMHO) in a professional setting nor would it be tolerable by a lot of younger generation folks (female & male). If you are around 40, wear old-school clothes, prefer leather jackets and have broken in a few pairs of Doc Martens in your lifetime, then go for it! If you got some tattoos, those are a plus. But, I don't know you at all - so this is a generalization...please do not take offense (humor is intended as well). :-) Know that Vintage juice from Drakkar Noir and other powerhouse fragrances will WEAR you if you are not a macho guy with some serious swagger. Do you play guitar, listen to punk rock and actually know who Social Distortion and the Sex Pistols are...? A bit about me - I'm 39 years old, 6'3", 190-195lbs., work out regularly, either spike my hair or slick it back, play an older Les Paul through classic Marshall and Mesa Boogie 100 watt heads, have owned Doc Martens since I was teenager (still have 4 pairs in my rotation of boots/shoes), spend too much money on hip clothes, always care what I smell like and just saw Social Distortion on Feb. 13th live! I shave when I want to and walk with an attitude. Almost everything I value is vintage, retro, chic and away from current trends. People who know me say I have not changed at all since high school. I have just become more refined in taste over the years...and appreciate stronger, heavier scents that can be aggressive and smell dated.
So, I hope this helps you make your decision. Some people have bought Vintage and cannot bring themselves to wear it - I fall into the "Other" category while still really admiring current formulation (and will continue to wear regularly!). Good luck man.