I can't speak for others, but as a small business owner I am always happy to take bitcoin etc, trouble is none of my customers will pay me in it. One day soon with luck i may be in a position to offer a product that will be more accessible to the bitcoin community.
I think with bitcoin still using the old blockchain, many transactions will not be faster than expected. So yes we need more miners and new solid blockchain (not forks) to help Bitcoin survive.
Because it is very difficult to monitor and transaction costs can be very high and transfers can be very slow.