CD's with Rare tracks

So I have a few discs with tracks that don't appear on regular albums. For instance, Bob Dylan's Greatest Hits Volume II has four or five songs that only appear on that album (except for the expensive 2 disc Sidetracks album from Japan...).

So my question for those of you that rip CD's and play them on an iProduct or mp3 player is: do you rip all the tracks or just the rare ones? A part of me only wants to rip the rare tracks but a part of me feels the experience of listening to those rare tracks the first time is in the context of the whole album - even if it's a hits CD.

Thoughts? Opinions? Bueller? Bueller?

I always rip the rare/bonus tracks with the entire album.

Quite often though I will listen to the rare tracks separate from the main album tracks (unless it is a greatest hits comp.).  Many times I only listen to the rare tracks a few times and then never again....usually if they are demo versions that pale in comparison to the regular tracks or if they are poor quality live recordings.

I really don't dig the demo versions.