databases: big, mega on chessbase

Any reviews or feedback on the database collections from chessbase.  One has 5.1 million games on it, but the ones with 66,000 annotated games is considerably more costly.  Is the price justified on either option?

Try buying a used copy of CB BIG DB 2010 or 2011 at amazon, eBay or elsewhere you can update it yourself by adding the necessary TWIC files.

The Mega DB = the BIG DB except 66,000 games out of 5.1 million are annotated - that's 0.013% BTW - so how much are these annotated games worth to you?

I'm using a used copy of CB BIG DB 2011 updated via TWIC to right now and recommend it, although you might wanna consider Chess Assistant DB instead apparently it has more and/or different features.

good advice and insight Nimzo, thanks!