I think this cycles back to constant debate between the folks who buy bike tools and those who don't feel the should need to buy bike tools.

My rule is to make sure I own all the tools needed to service any bike I buy or I buy the missing tool at the same time. If the missing tool is unavailable, uncertain, or crazy expensive, I pass on buying that bike. I just don't need the hassle as there are lots of good bikes available that don't present tool issues.

fwiw
/K