Can anyone explain what the scrypt algorithm is for? PoS you "mine" by being a masternode. How do you get 2500 coins? Can you mine this using cpu/gpu/asic at all?
You can either mine or buy the 2500 coins, by holding 2500 coins and setting up the masternode you help the network and earn SAGA coins.
5000$ is rather expensive for new coin...
$5000 for a masternode is perfectly normal considering how much interest you make off owning one. Bulwark's price for a masternode was $5000 last week before the tokens were $6. Now a Bulwark masternode costs $15000. The good thing about proof of stake tokens with masternodes like SAGA is that you don't have to own a node to get rewards, staking them is a much cheaper option, and Coinsmarket lets you stake in their wallet for free. Masternodes aren't a necessity but are good for people who can afford them.