That's a feature, but it's not a good feature to have (for Bitcoin). A currency's success is measured by its ability to facilitate commercial transactions, not by its ability to make you rich simply by holding it. That's what *investments* are for. Currency isn't an investment and shouldn't be.
The fact that there could never be any more Bitcoins ever again would encourage speculation and hoarding, which is not what you want from a medium of exchange.
If you're worried about currency devaluation and put some of your money/time into Bitcoins, that makes sense as a hedge against inflation (ie. an investment), but nothing more.