@samreader1 Well faster drives would translate to faster read speeds. Faster read speeds are handy when someone comes across a very short deadline, like 20 seconds or less. That way you improve your chance to submit any deadline before that short deadline forges a block.
Another way to shorten your read speed is run the plot optimizer which significantly shortened my read speeds ( some by 10+ seconds). Keep in mind that when you plot a SSD there is no need to optimize, but I'd only do that if you have spare SSD space already. The extra cost of an SSD is not worth the investment for mining.
I believe the general consensus is aim for 7200 rpm HDD, either Western Digital or a Western Digital sold under the 'White Label' moniker. I've had good luck with white label drives from goharddrive.com.