Your points don't make sense. Bitcoin can be bought with your wage or less than that, you don't need to buy 1 BTC or 2 BTCs to buy Bitcoins. You can buy 100000 satoshis and you you are already buying Bitcoins.

The adoption is low because Bitcoin is new, started few years ago and it's a innovative technology, things like this takes more time until become popular, for me it's going well and normal. Bitcoin potential will work on long term. Think big, Crypto Currency is a new step in the society evolution, everyone using this won't want to stop using.