Yes, bitcoin is not gambling, bitcoin is a track record, and you can make the investment by analyzing the market.
Track record is a bit vague terminology, so I think the best word which is used for the bitcoin is block chain system. The best thing about this system is that it doesnt need audit because it is being audited by different people around the world at the same time and the numbers matches every time. As far as gambling is concerned, I think gambling is pure luck but this system has knowledge and luck both of the factors.