The best deal is subjective. How many pounds of espresso a day do you go through?
A Mazzer Super Jolly will be sufficient as long as you change the burrs every quarter. If your business is really sporadic a line to the door followed by long down times it may be worth going to a Conical Burr grinder like a Royal or Robur. Most shops don't need to go this rout until they are doing upwards of 20lbs a day the nice thing about Mazzer SJ grinders is that you can always sell a used one for $400-500 on ebay and can buy them new between $800-900.
Jay is spot on in smelling out the hype. I super jolly runs hot and has a slow output relative to a compak k10. I've used them side by side with Mazzers and they grind with the best that mazzer has to offer. Because they have a conical burr system they run cooler and have a 20+ gram output in under 5 seconds. You will spend a lot less for the compak than a mazzer and get more for your dollar.