Shutdown shows in a way that the government is not entirely corrupt and stupid, and some politicians are at least trying. And even then there isn't an actual shutdown, funding has been extended.
The fact that there's a shutdown or risk of one implies that at least somebody is not willing to lay down and be rolled over. It means that at least somebody is trying to uphold what they think is right for the people.
In fairness, your pet party or favorite legislation cannot simply bowl down all who oppose it, because this violates the principle that the opposing party can't do the same to you. This means they are NOT going to just give in to get things over with, and they are NOT going to play dead for unacceptable terms. They will hold out for either agreement or compromise, because that is their job.
If you don't like Obamacare, you should be thankful that things are halted because it means somebody in there is fighting for you. If you do like it, it means the same.