it could be simple to think about a great tone that remains the same when mixed with other sounds. Unfortunately, It's not true. Every bass tone changes quite dramatically, from an audience point of view. It may seem the same when you have your cab pointing right at you onstage and you hear it as the loudest instrument, but it IS very different up front and in different parts of the room.
It's our course. We are all damned and obliged to work hard to compensare for this phenomenon.
Regarding cabs, I own a BB2, and I have not decided yet if it is my holy grail. It needs some babying sometimes because it points light on a useless tone like nothing else I have tried, but it can reward if you and your amo sound right for the band/venue. The fact that is light is pleasant, but the most important thing is the quality of reproduction. Dispersion is so good that I cannot use it onstage with a songwriter I work with. He is not used to hear bass clearly, he is not used to hear bass, and the BB2 cannot be silenced even at extreme offaxis. last gig I played behind the cab and I heard my bass wonderfully. The tone was appropriate up front too.
If I thought that a cab that sounds good every day,venue or with any band ...I would not esitate to buy it, regardless of price. But that cab is chimeric, it does not exist. It's the nature of our instrument and role.