Yet, with spread, securing the blockchain becomes a task in which there is no certain payout. There is no sharing of rewards to secure the blockchain, i.e, eventually the majority of spreadcoin will be made up of big miners as the little ones will just move onto another crypto that pays out. So instead of decentralising the mining across the board, we have single entities who make it a zero sum game for smaller miners who might want to get in on spread. I say this as someone who has tried to mine the coin for a day and have not been paid out. Now I know variance exists and some days I might get very fortunate and get a couple of blocks, but the point is there is no incentive for the network to be made up of small miners and centralises distribution in the hands of the few big ones. I know the more hashrate you have the bigger piece you should get, but in a regular pool environment even the smallest miner will get a piece of that pie-in this environment it's win or lose. Please don't see this as bashing the coin, I find the concept with this coin extremely enticing, but just imagine me as a potential miner and try to convince me to join up, explain how the end-game mining model would look for this coin later on.
After mining spread for 24 hours with my 7950 I found no blocks. Mining DRK (I have no animosity to Spread as I am mainly a DRK miner) there were a few blocks found in that same time period over p2p.
Long term you will make just as much solo mining, probably more as there are no fees involved. If you are only interested in short term dumping to BTC/fiat then this is not the currency for you.
Mining's primary goal is to secure the blockchain, not guarantee miner income. Some people have more hashpower and will thus earn more, same as any other cryptocurrency, regardless of whether they mine via a pool or solo - I'm not seeing how that situation is any better or worse with Spread than anything else. Spread just eliminates the risk of centralised bad actors.