It's all opinions. I literally said what's important is different for everyone. And in saying that you can only comment on what you've done, you took the wrong meaning of what I was trying to say. I meant that in talking about anything, I can only express opinions with my own experience. Meaning that I can attest to the ways that traveling in this case, has benefit me personally, and in speaking about travel I'm assuming that others would experience things in a similar way. Kind of like if I'm telling somebody about eating a great burrito, I'm going to talk about assuming that they would taste experience the taste in a way similar to how I did, rather than qualifying the statement by saying "You may think it's nothing special at all, but if you're anything like me, you're going to love this burrito". Not everyone is the same, but if I didn't think most people would benefit by having these experiences, I wouldn't be suggesting them.
I don't really care if anyone travels or not, but I'd consider myself much worse off if I had never left Canada and my only experience with other cultures had come from TV and movies. If that sounds condescending, then I guess it is. It's just my view.
Also, not sure if you know who you're talking to, but using a drug analogy to show that trying new things isn't always good is pretty much the worst possible example... although I admit few people will claim that cocaine has improved their lives.
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http://soundcloud.com/thundersheep/lunatic-asylum
http://soundcloud.com/thundersheep/summer-rain