<p>I'll second @AbbyT.Miller's sentiment that titles are often more important than other aspects of a post.  </p>

<p>In deciding whether to edit, remember that this bumps the post to the top of the main page.  Some things to consider are how active the main page is at the moment (it's less of a big deal when traffic is slower) and where the post is currently (it's less of a big deal if it's currently in the top half of the main page).  Even for older posts during busier times it could still be worth editing, though: an example would be if a post would be missed in a search due to the misspelling.  </p>

<p>A couple other points:  </p>

<ul>
<li>I think part of the disapproval of "small, single-character edits" is when there are multiple issues with a post (e.g., spelling errors in the body of a post) that are ignored, and only a small correction is made.  When evaluating a suggested edit, I find that less worthy.  </li>
<li>I think there can be some cultural / stylistic differences between the sites with respect to issues like this (for example, between high-traffic sites like SO, and smaller sites like CV).  So, I think this is an appropriate place to discuss this issue.  </li>
</ul>
