Maybe I am being too narrow minded to think that way, but compounding interest is a powerful thing and if BTC is guaranteed to go up every year by even as little as 10-15% (and those are conservative numbers based on the supply issue and I would think that the guaranteed price increase would be greater than 15% annually). BTC would change the whole dynamics of the world and incentives for labor......
Once bitcoin matures the deflation rate should match the growth rate of the economy, around 3-4%. If people stop working the economy will slow and the deflation rate will be less. It's a self limiting problem.