#4 - Feb. 6, 2007, 6:18 a.m.
The discoveries aren't intended to be common, they're extremely rare in fact. It's really intended to be a bonus if you happen to get one, and not something every alchemist is guaranteed to see. They're so rare that if you're putting effort purely towards discovery you could be spending a lot of time and resources to simply be disappointed. If you do find one, it should be a happy discovery, and not a waste of time if you don't.
What I'm saying is don't expect to discover one, but if you do then congratulations.