It's strange how unlike with mining, a reward halving for minting can be so unpredictable.
The new supply will be lower, but buying coins to mint will be less effective and thus will be in less demand.
Hi. I don't think it is really that much, if any, different than mining. In fact, in all cases I consider it better than mining.
With mining, eventually your equipment wears out, with Mintcoins, they don't wear out. If you think about the Mintcoins themselves as being your mining gear (or minting gear, rather)...they are just as good and effective a year ago as today.
When the rate goes down to 5%, the supply will rise slower, but that does not change the effectiveness of minting coins. The only thing that changes is minters will get less coins, but the effectiveness of the minting process doesn't change. Since the value of each coin you mint is a function of the price per coin, then, supply going down and demand being constant, price should eventually begin to rise to offset the reward drop. As a result, instead of the mintcoin market generating 6 million coins per day at say $0.00007 each, = $420 value per day........ once equilibrium is reached, the price should rise to offset that.........say 3 million coins per day at $0.000140 each = $420 value per day, so the value of what you are minting stays the same. But keep in mind that the price change will probably not happen overnight. If the price doubles, that also means the value of all prior mined and minted coins double in value too! So what you can save away today, could pay off even more later. But there will be probably be profit takers along the way up too, so finding equilibrium could take a while....but it might not...there are a lot of other factors to consider such as, that the mintcoin market cap is relatively small compared to a coin like bitcoin so bigger moves can happen quickly, and for no apparent reason. So true value (coins generated x price) shouldn't change. But that doesn't mean it won't change.
Some people are attracted to high reward annual percentage rate (APR), others are attracted to prices moving up. I believe Mintcoin intends to find a balance of both worlds. Too high of a APR, and too many coins flood the market, causing price depression and instability, and nobody will want to hold the coins unless they are able to be staking/minting their coins, but not everyone can or will do this. Who wants to stake a worthless coin? And it is probably not fair to those who aren't interested in computers and minting, if they just want to collect a few coins but not stake/mint them, then their value of their coins will be devalued quickly over time. So we need less coins being added to the supply, to help keep prices up. But on the other-hand, too low of a APR is not good either, as it could create fungibility problems with too few coins in circulation to be of any use for trade, and too low of a rate, nobody will bother even staking/minting to securing the network, which is very important, or you don't have a coin at all!
So I believe Mintcoin will have the good balance of both worlds and that the prices should continue to steadily rise, and at 5% in a year, the minting is rewarding enough for those who put in the effort to do it, but not so high as to be unfair for people who don't mint/stake. We want our coins to hold value for all people, not just stakers/minters. Hopefully this will help create demand for MINT from all types of people.
This is the challenge of trying to make a perfect coin that pleases everybody, but I believe MINT comes pretty close.