This was only 10 dirham (80p) to get into, so I can't complain about the price.
The tombs themselves are wonderful to see, however you can't go in and walk around them for preservation reasons. Instead, you queue (for half an hour in our case) and then look at the tombs from the doorway behind a barrier. Not that the tombs were underwhelming, but rather that they weren't really worth the queue. They make some nice pictures, but I wouldn't bother again. Certainly not a place to take young children.