I have mixed feelings about it. I absolutely hated having to go through the silence when it was not embedded at the beginning of a subsequent track. Skankin' Pickle's Green Album was like that, but worth the "effort."
Bosstones - yep I remember that one. Cracker too.
I think my favorite is the hidden "minus" track on They Might Be Giants' Factory Showroom. You have to start the CD, then rewind into the negative space before track 1 to hear it. Pretty clever.
Bought the first Lauryn Hill as requested by my, then young, daughter. Put it in the car's CD player after picking her up from school. The "extra" track was "Can't Take My Eyes Off Of You". My daughter was AMAZED to hear her old Dad singing along, knowing all of the words, to a song on the BRAND NEW Lauryn Hill album!