Agreed theory!!

But to answer your question. No, it is not worth 10 more dollars if you're just looking at the codes alone. But tell me if this is worth 10 dollars more, there is 30 days service (fixing, modify, add, erase), and also an extensive review and tutorial of how they can go about fixing, adding, erasing, or modifying whatever they want when the 30 days has expired. And I only do this for XHTML & CSS, PHP, ASP, and JAVA. So think about it, over a course of 6 months or something like that, all of the sudden they have something to add or something to change, they can still go about doing it themselves because they have the tutorial right there to help them. All of the tutorial are related to their sites. Unless they really have a lot money, and or they are just lazy, then they come back but I usually don't even charge them for something that small because it doesn't take up a significan amount of time. A little different if they come back w/ a PHP, ASP, or JAVA request though.