Yes, its worth the effort exploring whether you can coax more out of your system. May not work in all systems but sure did in my case. However I am sort of a gear hog and had almost all the additional components to try bi-amping, first passively(using the stock crossovers) and finally moving to active with an electronic crossover.
You should first do some research, start here: http://sound.westhost.com/bi-amp.htm
In my case I started with simple passive biamping, 2 identical amps. Then I tried a tube amp on my mid/hi with a SS amp on the bass. The tube amp had a volume pot which helped with level matching (luckily it was also the more sensitive amp) which is essential when biamping. My speakers had first(on the bass>mids) and second order slopes (on the mid to hi).
WHen I went to an active crossover, I simply kept the mid to hi crossover and removed the bass coil and part of the mid crossover and used a Marchand electronic crossover to split the bass freq. from the mid/hi. You need to know technical details about your speaker crossover, like are there any EQ networks for any drivers, etc...
Sine I am DIYer, I enjoy the hands on experience plus maximizing the performance of the gear I own.
So yes, it can be beneficial, but its takes time and effort and resources(money or otherwise).