DOH!
I just see how toknormal's CoinPrice fall can happen through leaving Miners!
MinerAmotisationTime = (MinerCount * MinerCost) / (CoinPrice * NetworkDistributionRatioToMiners * NetworkCoinsFlow [Coins/sec])
true..longer time stability will be this: lower NetworkDistributionRatioToMiners -> lower MinerCount, no CoinPrice change
But let's say Miners are p**** of the unfair Ratio enough that they also do not get into the game if MinerAmotisationTime is significant smaller than all other coins due to too less Miners.
If no additional Miners get back into it...the CoinPrice will lower over time till MinerAmotisationTime rises to equal level like the other coins.
So in effect yes if you make Miners dislikeing a Coin it will backfire in lower CoinPrices over an even longer time periode.
And if you make Miners attracted to a Coin then well...price could go heigher.
I can somewhat follow toknormals argumentation now. Given Miners do not look on their profit numbers only but also act psychological mineing coins they like and avoid those they dislike despite lesser profit.