Very few people have mentioned this small but important fact, but those who have, I agree with. The THREAT of the filibuster is too easy. Any idiot can threaten to filibuster something - and by even making the hint to have the intention to do so seems to be enough to frighten the opposition. The problem is that this only makes the party being filibustered - or more accurately potentially filibustered - look weak!
So, you think that making it harder for the criminally insane to buy a howitzer and a couple AKs is a BAD idea? Stand up and defend your stance! I don't think I'll agree with your stance, but I would prefer to know what it is rather than having to guess at it.
If you have a good reason for thinking that they should sell rocket launchers at 7-11, stand up and explain why. Let your constituency to know what your thought process is. Filibuster away! Who can forget Mr. Smith's impassioned oratory?
Change the rules! MAKE THE FILIBUSTER REAL AGAIN!
Wherever you are, I hope that you will stand-up for the things that you really believe in!