I think there has been way to much made of the presumed advantage of SSD over HDD for the B2. In a computer, where the OS has to be loaded every time you boot, the improved load time from SSD is certainly an advantage. But in the B2, the OS is contained in the SD card, so the 10 second boot time will not be improved. In the situation where music is loaded from the HDD or SDD, at audio playing speeds, there will be no advantage to SSD. For laptops that are moved around a lot, SSD has an advatage that it is less likely to crash than HDD. But with a B2 that is mostly just left on a shelf, the advantage is probably too little to matter.
Of course, everyone is entitled to their own opinion. But don't you want that opinion to be based on facts? I do. And I'll be glad to read of any additional facts that might change my mind.