Depends on what you compare it to. A basic 8TB SSD is about $500, but it's also more than 10x slower than what's in the Mac. A fast 8TB SSD from Sabrent, which

Depends on what you compare it to. A basic 8TB SSD is about $500, but it's also more than 10x slower than what's in the Mac. A fast 8TB SSD from Sabrent, which is still slower than what's in the Mac, is about $1800. Of course not everyone needs a blazing fast SSD for all their stuff. But that's why it has USB ports in the back.