By staking key, you can enjoy airdrops of 600,000 key tokens to share. The more you stake, the more airdrops you receive, plus endless airdrops, interest earnings, and the ability to convert nodes. You can also hold onto the coins, which is very appealing.
The first airdrop of 400,000 key tokens provided everyone with about a 5.5% return. With the stake airdrop of 600,000 key tokens, an estimated 10% return is expected. After just a few airdrops, you'll break even.