I agree with Dave printing from home means if you have the skill and the tools you can print the image to your desired interpretation. However I feel with a good Pro lab you should be able to work with the printer one on one and discuss/work on an image together to achieve the result you wish.
It's a combination of time factor and personal satisfaction. While you can work with a lab and end up getting a great print, it will still be done THEIR way. Not a problem if you don't like fussing around in the darkroom and don't have a preference for paper and/or chemistry which may be non-standard. Even if I could be happy with the results I'd get from the lab, the time factor of having to drive to the lab, drop off the negative, come back at least a day later and review the first print, then repeat the process until we arrive at a finished print just isn't worth it. I can spend a single afternoon working in my darkroom, and figure out base exposure time, contrast, burning and dodging cycles, and if I'm truly efficient, I can even take care of toning. I can therefore arrive at a finished print in one or at most two days worth of work at home, whereas it would take me a week or more at the lab, and multiple side trips to drop off and pick up. With color, I consider this worthwhile because while I CAN do color at home, I choose not to. For black-and-white, absolutely not.
Another factor is cost. When I started in photography commercially in the early 70's there was still a substantial trade discount for professional photographers (in the UK). This gave laboratories and professionals a competitive advantage.
Now amateurs & professionals/laboratories are paying pretty much the same prices for B&W paper so it is much cheaper to print your own images at home.
The economics with Colour printing are more evenly balanced.
When I sometimes manage to visualize the print while pressing the shutter, it is great fun to feel that I controlled the whole process. The creation of the final print is the payback for me. I am sure using the services of a professional printer would create even better results. As would hiring a professional photographer! But that is not the point. I gave up trying to find rational reasons for having fun a long time ago.