Reasonable Charge for Four Wheel Alignment?

[aborwick]

I took my 2002 C320 into the dealer for its "B" service and requested a four wheel alignment as well. The alignment cost me $178.51, $164.95 for labor and $13.56 for parts. My service advisor told me that the work was labor intensive because the wheel was so far out of alignment that tech had to install a caster bolt to properly align the tires. The price was much higher than an alignment for my 1992 190. Was this price reasonable? Will I have to pay this price every time I take the car in for an alignment or will more frequent alignments avoid what seems to me to be a high cost. Thanks in advance for your advice.