Dave,

Great responses above all I'll add (forgive me if this have been covered already above) is the following:

The answer to your question "what's the difference between you and a DJ"?

Simply put, your act man.

"Am I putting musicians out of work"?

Keeping in mind what has already been stated above, i.e. what the market will bare. The answer is a resounding no as these same musicians can also adapt by developing a solo act and possibly be right back into the swing of things.

Book those gigs and play them man, it is not only the honorable thing to do but it is what musicians live for.

Later,