The way I see it:
If you are pro, shoot the images that your clients will buy, but which aren't necessarily the images you'd shoot with a free reign.
If you are an amateur, shoot the images you love and with a free reign, just don't delude yourself that you could do the pro's job.
I rattle a few 1/8000th's out every now and then, just to give the shutter a wee exercise, I do use some f2.0's and f1.4's so, sometimes, even in Scotland.. you do need that speed.
A camera, I will now never own, the Dynax 9, had many cool things going for it, a virtually indestructible exo-skeleton type chassis, a 1/12000th top shutter (and a 1/300th flash synch) sony do interesting things, but Minolta were always a bit loopy, but always made lovely cameras to actually use.