Oyster sauce is one of my very favorite flavors in nearly every Asian dish I make.  I'd previously read that Lee Kum Kee is one of the best manufacturers but hadn't been able to find it in my area grocery stores.  What I usually buy is in a 5-6oz bottle and costs $4-5.  This brand adds just the right flavor, and it's definitely cheaper for the large bottle(s) than what I've been paying.  I keep it on the fridge door along with the sesame oil I purchased on Amazon.  Just typing about this is makes me wish I had some leftover Chinese food!