I see no reason for the expensive one. I beleive they only charging for the name SONY by the side. This fits in very well and it performed to expectation. Do not waste money buying expensive ones. This is the real deal.
I LIKE IT, ORDERED ON MAY 22, 2011 AND RECEIVED ON MAY 24, 2011 FOR MY SONY ALPHA A580.. HAVE NO PROBLEM WITH THIS AND IT DOES THE JOB GREAT BUY FOR ME,, EXCITED TO MY NEXT HOLIDAY IN A WEEK TIME.. CHEERS..
This is an excellent grip which also works with the Sony alpha-450. All functions are replicated and it means you can now shoot in portrait mode with comfort. The twin batteries are a bonus, as anything that extends shooting life is great.
Meike Professional Battery Grip Holder Pack Vertical for Sony A500 A550 Replace Sony VG-B50AM CameraMuch cheaper then the OE Sony grip & perfectly adequate for most casual users, even if the buttons aren't as good action-wise. Forget the more expensive option which includes two or four batteries though as these pattern batteries are waste of money (in my experience) as they just bring up an 'incompatible battery' error message in the camera viewfinder when used. Buy just the basic grip and put the extra money saved towards buying a second genuine Sony battery for your camera. You can get genuine batteries for as little as £20 if you search the web.