Comment by FourierEnvy

It can be scary to pigeon hole yourself into any specialist category with which it gives you less freedom of choice in the market place and be forced to make hard decisions on where you live and work. At least for me it's why I continually push towards being a generalist. That is, of course unless your talents in some specialist area are so fundamental to most companies that you'll be sought after for those skills and paid handsomely for the fact.