$90 for headset tools? You need to shop around. I bought mine from this guy:
http://www.ebay.com/itm/Mountain-Bik...item3ca1ba8023
Last time I had a shop do any serious work for me was 1975. Since then, the only time I use a shop is to remove an oddball freewheel, where I don't have the right tool (I have about a dozen freewheel tools, but there are many more varieties out there).
Park sells a home owner version of their headset tool, available on line for less than $50.
It really depends how often you plan to work on bikes, and do you have the room (and budget) for a nice selection of tools. The choice is yours.