downtownboy,
I've been doing it for 44 years now and I still love it! I was lucky enough to start in the military and as I did some exchange service I had a lot of variety there. Since leaving I've managed to have an interesting time, partly from working for some large international companies with different interesting jobs worldwide and partly from changing companies when some possible new and interesting opportunity has presented itself. I look forward to my job every day and wish I could continue for ever. Go for it - live the dream