I'm still new to researching family history, but was just this week delighted to be able to pass on the information I have accumulated (with the help of kind folk here) to one of the daughters of my grandmother's sister who has just started her own research quest.
I think that the best thing to do is to share information as widely as possible within the family so that it is less likely to be lost... plus, if you record information in a multitude of different mediums and places, then you won't risk losing everything to fire, flood, etc.
I find the idea of a whole room full of information exciting... I hope I have even a fraction of that to pass on as a legacy some day.