It's nice to have some nearby stars in various stages of forming planets. As our telescope resolution improves, we will get increasingly clear examples of how stars and planets form. This should give us an increasingly good idea about how our solar system formed.
I'm very curious to know if the inner planets of Beta Pic are rocky, or do they have large super-thick atmospheres that will get blown away later by collision or evaporation. I'll have to wait a couple decades to learn this.
Forming opinions as we speak