I got one just a few hours ago. This makes 4 western digital drives I've purchased in the last few weeks. I bought a couple of the 60GB 7200 RPM drives at bestbuy a few weeks ago when they were $129. I bought them for a raid 0 array. I bought one of the 60Gb 5400RPm drives last friday at the big black friday sale and then today I bought this one. I'm gonna wind up with alot of harddrive space. Anyway, I'm thinking I might just return the 5400RPM drive to bestbuy as it's still in the box. Then again I might change my mind and just keep it and use it for backup or something.
At my local sam's club they were $219, but of course you'll have to pay local sales tax which will vary from state to state. Anyway, I believe this rebate runs from nov 30 to dec 31. So, if they do run out of stock at your local Sam's club perhaps they will get some back in stock before the rebate expires.
As for the membership, I got that a while back. The company I work for had a deal where you could get a membership for half price. So, I took advantage of that.