When you need more people to work on programming. When you have them do work for money then at some stage you need to pay them. This is actually a great moment because it means that you have something to show. We are about to hit the first milestone of our development of the Ultimate Wiktionary. This is where we have functionality to identify tables and their relations within a Mediawiki environment.
The problem is that we have to pay outside of the European Community. So we do get into silly stuff like currency and costs.. We have to find out what the cheapest way is to get money elsewhere.
It is a problem but I prefer this to not having code finished.