I think OP didn't said nothing new, in order to spend and make money you need a lot of money for start. Its same with every currency and bitcoin can not be different about it. At least with bitcoin potential just with keeping one day we can be rich, with other currencies we can't count on that.
Yeah maybe sometimes you will end up having more money in pocket but the possibility of having nothing at end are more than having more, so that is really a bad choice for spending bitcoins if you are not willing to just blow them up anywhere without doing anything for yourself.