[pfarnsworth]

Older people care about convenience, rather than the "best" product (I know this as an old person). If Yahoo had a decent breadth of product offerings, and if they marketed it correctly, they could keep most of their customers in their ecosystem. It won't work with kids that are used to 5 different chat clients at the same time, but for the people that don't care as much about flashiness and care more about integratedness and convenience, they could definitely win the way against single apps.