Does anyone know of retailers which sell goods/services for crypto only with no option of payment made in fiat?
Could this represent a good business model for a small store with an online only presence?
There must be some holding alts who are fustrated by the lack of options in terms items they can spend their coins on. While there are many options for bitcoin, for the most part alts are neglected and there isn't a huge market where they can be utilized without first having to convert to btc.
Could support for ripple, eth, bcc, doge, ltc, dash and other alts be a good foundation upon which to build a small business?

Dude check in purse io. Here you can access with the bitcoin any fiat options too. Via this site, you will be able to purchase any things in Amazon.com and you will be able to get this discount for using the bitcoin payment here.
Additionally you will get the credits for accessing next time while purchasing things in this site.
Bitshop is the place you can access only with bitcoin bro. Now most of e store people are looking into add the bitcoin payment API to their cart, soon will find many sites.