It’s all relative to what you mean by many. Here’s some rough data for my blog.
My MT blog doesn’t get that many hits, limited mostly to hapless Google searchers. I post a couple times per week, on average. I get about 250 page requests per day for files in my blog directory. Of course, they are getting static HTML served up to them, so it is really just when I am editing, publishing, and administering my blog that I am hitting the database. At least, I think so.
The control panel is estimating I will use about .014 conueries for my blog’s database for this monthly cycle. On the sweet dreams plan, you get 10 conueries.
For comparison, I will probably burn through about 375 MB of bandwidth this cycle. While low, .375/25 is about an order of magnitude higher than .014/10. Even when you factor in that only about 1/2 of the site bandwidth is due to my blog, it’s still a big difference.