If you like having no control over your process, trusting your film to some drunken lab employee who is going to jack everything up, and paying for the privilege, by all means go with a "Pro lab".
I used to get back dirty 4x5 chromes. That's when I started doing my own E6. Now my chromes are perfectly clean.
DIY color is so easy, you can do it with a bucket and hot water from a sink (E6 too!)