Here are 10 good reasons why use bitcoins.
1. Its fast
2. It's cheap
3. Central governments cant take it away
4. There are no chargebacks
5. People cant steal your payment information from merchants
6.It isn't inflationary
7. Its as private as you want it to be
8. You don't need to trust anyone else
9. You own it
10. You can create your own money
Well bitcoin is really not that cheap in fact it is more valuable than any other fiat. For me use bitcoin because of it's technology that allows us to enjoy those benefits that you mention and use bitcoin because you want to secure your future. There's a big opportunity here on bitcoin you just need to find it how to maximize those opportunity.