The fourth reason is to start a travel blog. If you are really dedicated to traveling and sharing your experience with the world then you can start some travel diaries online and have people follow you on your journey.
First reason. The people that you meet are completely different as you get further from home and further from places with media influence. If you are a good person at heart then you will run into hundreds of other good people, along with fellow travelers that can guide you in directions that no one else could.
Hire local transport for the day: One great way to get around is to hire a tuk tuk or a moto-driver for the whole day to take you everywhere you want to go for a very nominal price. Your driver can also work as a de facto tour guide, getting you around to the spots you may not have thought of and that you would regret not seeing.
Almost everything is negotiable, almost: Haggling can be more beneficial in Southeast Asia than in most places in the world. Vendors at most malls and shops do not have price tags and it is common that when you ask for one, the price will be quite high because it looks like you have cash to burn. Don't be afraid to ask for a lower price since another vendor just a few feet way is sure to be selling the same thing.a Brief History of Japan's copy culture
Also, many of these countries have free English-written dining guides. Check them out.