I had a CW800. Its purpose was to receive extra signals in South America while others boxes could not. When i bought the CoolSat 5K, I realized what I was missing on the CW. However all those old boxes are obsolete if you enjoy high definition. Both 5K and CWs can be bought for $10 to $25, but an S2 card for $100 is a better value if you have a reasonably new computer. However S2 cards can be very difficult for non-geeks.