Take a look at Tackle Rat's pliers.
They range from $15 to $40 and they're made of surgical stainless steel.
You know why you have to look after them? It's because most of the pliers on the market today are made with low quality stainless.
I have a set of needle nose pliers that I bought 20 years ago for $30, expensive for pliers back then, and after having sat at the bottom of the bag for years they only have superficial surface corrosion, which is easily removed.