I have used Shure mics exclusively over the years.  This was purchased for my son, the heavy metal singer and needed to take the abuse.  It does and keeps on working.  Previously he had a used SM58 (the workhorse of the industry) and he destroyed it.  It was about 20 years old when I bought it and I can't believe it lasted as long as it did with the abuse he gives microphones.  This one is standing up to the abuse even better.  I'm sure it will last many, many years. Personally, I use the Beta 57 as I like the smoother sounds for vocals.