Being Dutch I have known about Gulden for a while, but I still can't wrap my mind around the fact that it actually survived... One thing that always bothered me is the fact Gulden is a more or less Dutch-oriented coin. Non-Dutch won't be nearly as drawn to it. Furthermore, I spotted Amsterdam Coin as well the other day. I'm not sure what to think of all of these, and wether or not I believe there is room for all these smaller coins within the larger scheme of things.

I feel like Bitcoin is going to be accepted relatively widely at some point (as it almost already is) but Gulden is hugely dependent on in-between payment providers including them in the payment methods.
I don't see why anyone in the distant future would ever opt to trade in their FIAT for digital Guldens or Amsterdam coins, instead of just opting for good ol' Bitcoin (or even Dash). It seems like the only ones spending Guldens or Amsterdamcoins would be the investors... and an ecosystem needs more than just investors.
Maybe if in all of the Netherlands you could get a 5% discount when using these coins, they would be used more, but this is of course not the case. I don't see the use case when more established coins are available...
I'd love to see it succeed though, being Dutch!