For that price range, check out Rogers Sporting Goods' toughman waders. They range from around $140-200 depending on size and neoprene thickness. My 5mm 1600 gram stouts were about 170.
X2 I got a pair this year and I love the damn things. Cheap and bulletproof. Rogers is a good place in general to get waterfowling gear. They have really good prices and usually free shipping
