Not the best

I had a not-so-proud-of-myself aha moment this morning.  I was reading a homeschool thread about why homeschool parents would never consider public school for their children when I realized that I only plan to deliver a mediocre education.  I've never thought that I could give my kids an education that excelled or even matched the public schools.  I've only thought of it as different.  All of my planning takes the form of "what can we cover in a year" vs. "what is the most excellent education we can achieve in a year."  Are my kids not worthy of my best efforts?  Is homeschool just another thing to check off of my to-do list?