I actually stopped using mine a long time ago, and every time I get a new laptop, I remove it. Not because I hate it, but because I like it. Even after modifying the acceleration settings to where I like them though, the repeated stress of pushing on the nub eventually start to develop dendonitis in my finger.

After I've trained myself to only use the trackpad I put the nub back on. Partly because it's so iconic it just looks wrong without it, and partly because I want to avoid conversations with guest about my growing clit graveyard (although I guess I could just not leave them in a cup on the coffee table where everyone can see)