But hey, think of it this way. For only $10 or so you can support someone (who you like) in doing something that they love to do. And take it from me, it's not only "supportive" to buy someone's CD, it's really encouraging. And I mean it gives the artist courage to continue. To write, sing, record and perform in public. If you've never done any of these things, imagine doing it now and you'll see the value of courage.
So anyway, in order to support an architect in doing what they love to do, or a dancer, or a playwright, or a painter, or a novelist, can be considerably more expensive and possibly time consuming. Musicians are some of the easiest artists to support and give courage to. If you truly can't afford to buy their CD, you can always listen, or clap, or tell them you like their songs, or tell them specifically what moved or touched you about what they do.
But if you can afford to buy a CD, especially from local un-signed artists, I encourage you to do so. You don't have to buy everyone's...just mine! :~) Seriously, just pick 3 or 4 of the local artists you most want to encourage and buy their CD's over the course of a year. You'll be making a real difference for someone, and who knows maybe some of their tunes might be "Pod-worthy!"