Edit: Based on what everyone else is saying, I've assumed you indeed meant to say cheapest.
The longer you leave it at $3, the more expensive it will look when you raise it (and I really think you should raise it).
I'm guessing there's some service associated with this, but from the tour it wasn't obvious. I'm not attacking your product, but want to give my experience/thoughts.
When we hand rolled our own product tour code for a previous project, what we quickly learned was that maintenance was a nightmare. As soon as layouts updated or changed, editing the tooltips we had created already was tedious.
We, however, have plans for other features that we think could really add a lot more value. So if you don't see it now, perhaps later on when we roll them out.