wclark5179, I don't find those questions very helpful...
If your photographs are really important to you and you want the negatives to last as long as possible, there are actually two options;
1) Do it yourself, preferably using fresh and proper chemicals from Kodak or Fuji, or,
2) Find a real, proper professional lab.
So, DIY is usually very good way for both cost savings, and for reliability and quality. But this, of course, depends on person. Even when you push the chemicals over their limits, you are just doing the same that minilabs do, but you can monitor your results without surprises.
The reason you can actually save costs and still have the same or better quality, is that the price at prolabs (as well as minilabs) is actually mostly for labor, premises etc. When you DIY, you are only paying for chemicals.
The key to make negatives last is proper final wash and usage of final rinse (supplied in the kit), and not washing after it, so just follow the instructions, and then keep negatives in a cool, dry and dark place.
Actually how well do the negatives keep if they come from a washless minilab machine, is a mystery to me.