I think all drive manufactures have this problem. It's inheritant to the technology and how the drives are mass produced. Do a search on the web and you will find drive failure complaints about all of the major brands. I think it's a case were competition is not good. Sure, we get new technology, but all of the companies are racing to put out the next best fastest drive without focussing on making the technology more stable/reliable. What would you rather have... long lasting or fast and cheap? I think I'll go with fast and cheap. Until they can come up with high capacity flash drives that eliminate the moving parts, we are going to continue dealing with drive failure. Best to plan accordingly and buy extra drives and do lots of backing up.
Least we are getting decent prices now. I just bought a 500 GB Sata ll for $175, which comes out to less than a penny per megabyte. Less than a decade ago, drives were selling for around a dime a MB and they weren't as fast. I'll let you do the math.