From the CB after theorbtwo brought up the contrast between I can't get no... and Passion for Perl:
<tye> easy satisfaction is not as satisfying
I think that hit the nail on the head. The more difficult a task is, the more satisfaction you get out of completing it. Perl, however, makes most tasks relatively easy. It's not hard to write in one day the Perl equivalent to what might take a C programmer a week. The end result is that sometimes it seems too easy, particularly if you have a lot of experience in a language like C.
At some point you just have to accept your solution no matter how little effort it took. If it passes your test cases and runs within an acceptable amount of time, you can probably let it stand. One idea would be to focus that leftover energy on, for example, writing better documentation or improving your installation package.
You might still be able to get that feeling of satisfaction from completing the project instead of just the program.
"My two cents aren't worth a dime.";