Would you approve these comments?

Hi folks,

So I've gotten an awful lot of spam comments on my blog (many more than actual comments). I have two that are pending that I'm debating about. They are clearly just drive by comments, but they are at least kind of sort of on topic instead of being pure spam.

So for example, in the blog post "what if gas gets significantly more expensive," there is a comment from someone who is promoting exercise dvds and the comment is "I am pretty sure this subject was dealt with on Sixty Minutes" It's kind of, sort of on topic for the post, but it's clearly just a drive by from someone looking for a link from an unrelated blog.

Then there is a stranger one under 5 secrets your credit repair specialist won't tell you. It says "only so many options for quick credit repair" and the comment was left by someone with a Weebly blog which is about debt consolidation (a subject I generally frown upon because the majority of people in that industry are slimy at best and outright scammers at worst).

Anyway, so what do you guys say? The comments where they obviously aren't even trying to make a point which is worthwhile, I just list as spam automatically. So for example, "Finality is not the language of politics." which was published under "stupid Facebook faux pas you should avoid" I labeled it as spam.

Thanks for any advice.

Eric