I have an account like that. To be honest, unless you are planning on uploading videos every day and go for a huge subscriber list, it's just something to supplement your current income. It's adsense attached to video. Some people kick ass with adsense but most don't, this is the same thing.
You'll know once you're getting big when you get an actual "partner" account, which is a step above what you just got. Right now you just can monetize your videos. A full partner account is where you can add your own background designs with links and banners out to other sites. You've seen how some big accounts have a custom header on top with links to their facebook or twitter accounts? That is one of the things you can do with a partner account. You usually don't get this until you can 1000+ subscribers and are regularly uploading.
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