Not for that price. For E-6 processing you need to really shop around since you are putting the final image in the hands of someone who may or may not know the chemistry.
The key is finding a place that has a high volume of E-6 coming through. This is because E-6 chemistry needs to be replenished regularly. On top of the chemistry replenishment, the machines need to be cleaned daily. If you go the least expensive route, you are risking losing the quality that slide film can deliver.
These days, E-6 processing is going down the tube for all but the largest markets. Digital has taken over the color process and there are so few photographers using slide film that the labs which still have good quality control store up maybe 20-50 rolls over a period of a week or two to maximize the freshness of the chemistry. Labs save money this way and photographers get better results. If you find someone who says they can do it same day or within a few days, on a regular basis, all the time, walk away. You'll get stains on your slides and they may not be fixed or bleached properly. Maybe have them develop a junk roll.
I know of four labs in the country that I have used and that I trust, though I'm sure there are more. One in NYC, one in Philadelphia, Dwayne's in Kansas and Specialty in Santa Barbara, California.
As far as price goes you're going to be paying close to $10/roll for developing and mounting. There is more labor involved with slide processing so it's inherently more expensive.
Good luck and if you find a reliable lab in your area, post a photo and your opinion of service and QC here in the forum. Reliable labs with good QC are becoming scarce, so if we know where they are, we can help keep them open.
Phil Forrest