Sliver Swarm Precon???

Should I buy it??? I see a lot of people bashing the landbase and saying that it's not worth it, but I really like slivers, and it has enough of the good ones to make it seem worth the price. I currently don't have any slivers, so that might be a factor. Advice would be appreciated! Also, the composite of the cards in singles is more expensive than the precon, so that might help.