Odd price, $3. He could have doubled his price to $6, doubled his income, and lost no sales. Anyone who would consider buying a component online would surely not blink at the difference if it saves them a half-a-day of effort.
Maybe he doesn't want to have to provide support and thinks that $3 would be the cut off point for that? Hard to say really.
I would happily sell a bunch of scripts for a few $ on an "if it works, it works" basis. Once you start thinking about saving days of dev time it makes sense to bump it up to $100+ but then you will have to deal with emails or calls.
If that was on a site like codecanyon he might had no choice for the price. The staff there have their own ideas for the prices and doesn't let sellers set their own.
