It seems to me that i14RMT means touch because it has a "Y" at the end. But staples listed i14RM-7500sLV as touch screen laptop as well. What is the real difference between those two? Is i14RM-7500sLV 5 points touch? How about i14RMT-7475sLV?
Check the processor, RAM and drive specs - they're likely very close systems. The major store chains have specific models built for them (it's one way they escape having to sell on price, since they'll generally not match other than identical models).
Probably this is the case, but likely i14RMT and i14RM belong to difference series. Tha's why I questioned the touch screen.