But with an infinite supply there is the inflation to be counted in.
So If you have 100.000 coins (0,xx%) , every year you lost a portion of this value (due the inflation) (0,xx % change to a < percentage).
like fiat currency more you print, the "total" value will be the same, so the value of single unit decreasing .
The supply is hardly infinite. There is an idea out there that just because there are 100 billion coins, the
value of the whole set of coins should be affected by that somehow, in a way that is negative. But it doesn't matter how many times you slice a pizza - it doesn't change its underlying value.
The emission argument is a valid one when compared to Bitcoin, but there seem to be some misconceptions regarding it. The emission rate is based on a fraction of the supply of year 2014 (5%), and is a constant, which means that the inflation amount goes down with time. That means that in 20 years, when there are 200 billion Doge, the yearly supply increase is down to 2% a year. This is probably better than 0%, because it allows some basic liquidity in the network, which allows it to keep running without charging super high transaction fees.
It is kind of funny actually, during the initial phase when the emission was 20-100X what it is now, no one was saying much about the inflation concerns, it was just BUY BUY BUY, moon moon moon. But now that the yearly inflation is down to 1/20 of what it was in the first year, there are concerns?
If 100 billion was created in a year, and the coin nicely integrated into the market, having 100 billion more over the next 20 years doesn't really seem to be concerning, especially considering that growth rate should outpace 5% a year because cryptocurrencies are fairly new, and usage and community size would very likely have doubling times far quicker than such a rate of emission.
When you have a major world reserve currency that doubles its money supply in mere years, without any growth in market share (if it has already propagated through all the markets), then that would be concerning and a reason to move money elsewhere.
The amount of Doge available on the exchanges is a good thing. When money flows into Bitcoin, it's only natural to go into alts for diversification. But What if someone wants to put millions of USD into a cryptocurrency? Can you put actual money into something that has small sell walls, and needs the price to go 10X just to get a reasonable amount of it? Doge is one the more liquid currencies, with a robust network, so it would be a logical choice after Bitcoin.