I am buying more SPS tokens for staking. And to collect as i think its tremendous value. Its now $0.02 should go much higher as its has so much utility.
I have seem the total balance of SPS gone up significantly due to the increase in price.
Dec is also worth buying, as its a useful token. But i think better to buy more SPS and staked it.
According to the boost modifier its under 5. I like to get it to over 10, so the rewards might be higher value.