Hi,
in my experience I would like to suggest you to not judge a sound in terms of Gbytes.
A 3 or 4 GB piano it's not for sure better of a smaller one.
I remember one of the best piano I've tried was a small size one, from the Miroslav Vitous collection. While sampling there are too much factors that change the sound (mic type, mic position, pre-amp used, wave editing, etc) and for sure Miroslav big experience (and very good hears) has done a much better job than others around.
Of course this library is now old and most of the current one are far better, anyway what impressed me (but also some friends around) was to understand that these few MB of sample were much better than the fabulous GigaPiano for instance.
Just sharing my ideas.
Regards.
[This message has been edited by Booby (edited 04-10-2007).]