Asia is huge. Like 63% of humanity huge.
Of-course the market in Asia is going to be much more massive.
A lot of rural places in India have better Internet that I have sitting here in a British city - at a much more discounted price.
Everyday millions of people are coming online - internet virgins. They will have their own new taste, needs, etc.
The thing to understand before you think about investing your hard earned money in an asian country - is even though the volume of amazing ventures are a lot more - each smart ventures is followed by 1000s of dumb ones.
The signal to noise ratio in low - unless your are in the market - you will be scammed - this is why a lot of large companies have tried and failed to start industries all over asia.
Anytime you start pouring a lot of money anywhere - govt, scammers, etc all want to dig into you. Red-Tape, bribery, lack of transparency and rule of law.
This is not as overwhelmingly present in European or american markets.
I do not for a second doubt that the market size, growth, etc are going to be insane in asia for the foreseeable future - but there is a question of sustainability - and this requires structural change in government in many asian countries.
Unless you are interested in short term - high risk - high reward outcome. And are more interested in long term investment - then Asia needs some reform before you think about investing big time there.