Ah, now I understand your viewpoint.
Phew, thanks, I was beginning to think I had got something terribly wrong
Having 100 different currencies with the same properties would lead people to believe that there would be more wealth in the economy and would thus lead them to raise their prices.
People may believe that, but they would be wrong. Paying more for the same thing is what happens with inflation.
But CONFIDENCE would still remain in these coins.
In the absence of coercion by a state or other entity, confidence plays a major role in the adoption of a currency, and that in turn effects it's market cap and value. Good money drives out bad, that's a lot of what bitcoin is about. Confidence also has an exaggerated effect of the value of a currency when that value is driven primarily by speculation, as is currently the case with crypto-currencies.
I really do agree that belief plays a major role, money is not real, but the market also prices in fundamentals, regardless of what people believe. A lot of people seem to believe bitcoin is a decentralised PayPal, but regardless of that belief it's acting a lot more like virtual gold. If belief was _all_ that mattered then QE would actually work, rather than just being a way of transferring wealth from the economy as a whole into the banks. QE would be causing massive inflation if the new money was actually being circulated in the economy, but instead it's being used to cancel bad debts, being lent back to the government, and to some extent is being hoarded by the wealthy elite. Belief has little to do with it in this case.
It may very well be the case that the benefits of competition outweigh the dangers of diluting the crypto wealth pool, that's why in my original post in this thread I started by saying competition is good. I'm not arguing the relative merits of specific coins, I don't know enough about all the alts to feel I can do that with any authority.
There was a thread a while back where someone was proposing an altcoin that was backed by bitcoin, conceptually it would exist within bitcoin, and contribute towards it's market cap. I think that was a scam, but it was an interesting idea, and it would be a way to have alts without causing the problems I have outlined.
I'm pedantic, I have a pathological need to define things in unreasonable detail. What I have said may have little importance unless crypto goes mainstream in a ridiculously big way