It would cost more than $10k for a pro sports photographer to switch camera brands

Sony's cameras seem to be in a league of their own. So why do professionals stick with bulkier models from Canon and Nikon? One answer is glass—often just as pricey as pro-grade bodies, and you need a lot of it to be in business. DPReview's Dan Bracaglia suggests that Sony's latest full-frame model, the $5,000 A9, is so fantastic that many pros are talking about jumping ship, but should be cautioned by the sheer expense of doing so.

Using our example, the cheapest one could go full-on Sony, with most of the same kit is $22,870. After applying the $11,820 discount from having sold off all the Canon equipment, a photojournalist would still have to cough up about $11,050 to make the switch. Or they could simply take that $11,820 and buy a couple of a9 bodies and maybe a lens.

"Switching systems is a headache," he adds, "and sports photography gear is crazy expensive."