Breathless speculation aside, I think it would be extremely cool if we could identify, intercept and sample an extrasolar object at some point in my lifetime.
The most amazing thing to me (after reading Wikipedia on this very-recent classification of "Interstellar Object"), is that only two prior have been confirmed, and all in the last decade.
By this point it looks like they are not that rare. Lets just hope the next one does not have enough delta-v to change its trajectory to intercept us - at a couple dozen km/s. ;-)