I got an interesting article here that compare both POS and non-staking coins (I think it is POW here?)
https://bravenewcoin.com/insights/pow-vs-pos-the-debate-definedImportant part:
The problem with Proof of Work
Given the heavy utilization of computational resources involved in mining, PoW is considered to be costly, wasteful and inefficient. Having thousands of miners working on just one solution each time is an excessive use of resources, especially as the only block that has any value thereafter is the one that is solved. With each new block being mined, therefore, there’s a heap of effectively useless bi-product. And it’s costly. In fact, one study has equated the power consumption of Bitcoin mining to Ireland’s average electricity consumption. And that doesn’t include all the newer cryptocurrencies that utilize some form of PoW algorithm.
The hardware used in the mining process, moreover, is usually an advanced and expensive piece of proprietary equipment. Take Application Specific Integrated Circuits (ASICs) as an example, which have been designed to exclusively mine Bitcoin and other cryptocurrencies. Most of the research and development of ASICs currently originates in China, a country where electricity is also comparatively cheap. So, given that Chinese ASICs manufacturers have considerable incentives to simply mine bitcoins for themselves – and indeed do so – this has led to an estimated 60-70% of Bitcoin’s total hashing power congregating in China. As such, the problem of excessive centralization of power emerges – something that is antithetical to the founding tenets of blockchain.
The problem with Proof of Stake
One of the most cited issues with Proof-of-Stake is known as the “Nothing-at-stake” problem. Under PoW blockchains, there is an incentive to keep on mining the longest chain on the ledger, as this chain will be considered the primary version of the truth and the one that earns the miners their rewards; so miners are clearly incentivized to mine only that chain.
But with PoS, there is little to prevent a miner from mining on numerous PoS chains, especially given the fact that there is negligible computational expense to the miner under this algorithm. Hypothetically speaking, a bad actor PoS miner operating on various chains could make it difficult for the network to reach consensus, and could attempt to rewrite history.
This problem is particularly pertinent when a fork in the chain transpires (as happened with Ethereum, which then produced Ethereum Classic); in such a situation, validators using PoS could place stakes on both blockchains which makes it easier to alter the truth in their favor and earn profit. Indeed, partially as a way to solve this problem, Ethereum is in the process of making the transition from PoW to a new consensus strategy called Casper, which will employ a PoS algorithm. The move is intended to make the processing of new blocks onto the chain significantly more efficient, while Casper will also punish those who attempt to stake on two different chains.
It seems each have their own advantage and disadvantages. In technical aspect, both have flaws, it was stated on the quoted message above, that is why others tried hybrid where they implement both POW and POS.
When it comes to market price, it all ends on the number of the creation of the new coins and the set maximum supply. So it does not matter whether it is a staking or non-staking coins because they both continuously produce new coins until they reached their supply cap.
