[QUOTE=Pragmatic;1807222
It's definitely scary that so much of the company's revenue is tied up in one product line...[/QUOTE]
Really? Id say its pretty straight forward variant of the
http://en.m.wikipedia.org/wiki/Pareto_principle in business.
Though instead of 80% from 20% of customers its 80% from 20% (or less) of product.
Its pretty common on many levels of business if you think about it. The Pizza shop where sales come 80% from the pizza the rest is the drinks, desserts etc.
My friend worked in bike retail he said it was exactly the same a few products were about 80% of their sales.