I do not mean to discourage you, but if you are comfortable with your job and doing OK in your country, I guess you better stay put there. Most of the people who come here after few months time ended up looking for jobs to be able to return home..plus you wil only add on to the inflation pressure, as the income gap is horrendous here with Western expat earning more than 20k USD a month and a Nepali guard only $200 a month...
But again, it's entirely up to you...some people has been here more than 20 years and I am sure they are enjoying their life here..