I'm not an expert on this but I'd say in order to test if the product is viable you'd have to be able to sell it with extremely minimal 'extra' features. In ot

I'm not an expert on this but I'd say in order to test if the product is viable you'd have to be able to sell it with extremely minimal 'extra' features. In other words, if you can't sell it without SSO, you can't sell it with SSO. Hopefully you'd then get 20 customers who say "we love this but we'd also like to have SSO...". Then you'd go build all that stuff on top of it.