Same here, I have a $23 Etekcity, from Amazon. I don't use it much (haven't needed it for RC yet), but I like it. It's worth looking at the distance to spot ratio. Mine is listed as 16:1. As I recall, that means it measures a smaller-diameter spot, vs 8:1. Letting you more precisely measure a certain location.I have a $20 Etekcity from Amazon, I have checked it other thermometer around the house and they're all with in a +/- 5 degrees which is close enough for me.
I've had my Harbor Freight cheapo since 2016. Still works with the batteries that came with it. They don't make the one I have anymore though.$12 @ Harbor Freight...but I have no idea how long it will last.