To be honest they are all about the same until you hit the high end and they are better because the take multiple readings quickly and average the result. Is it worth the cost unlikely. I would look for one that takes a battery that makes sense for you, aa, aaa, 9v or the like. I would suggest a DS ratio of 1:1-8:1 I would not bother with longer remember the optimal range gets longer with the larger DS ratios. 1:1 around 4" and a 6:1 is around 24" while a 8:1 is 32". Typically I'd look for a 1:1 as most with balls don't need or want to read temps farther than 4 inches.
I prefer to take temps from across the room actually. Just bc i can with my gun lol:P
