I am thinking of purchasing a new thermometer. I have a Maverick732 and Thermopro T20 but not trusting the probes anymore. To replace all four is costly so I maybe better to buy the Inkbird that comes with four. Looking at Amazon, I see two Inkbirds IBT-4S $54.99 and almost identical, the IBT-4XP at $64.99. Naturally I like the cheaper one for price but have to wonder what does extra $10 buy me? Any comments appreciated... I can't seem to find why there are two with same features but different prices. "You get what you pay for" but I don't see it.