You actually, for most work anyway, rarely need more than several feet of dolly track. Dolly moves, like most every other approach to videotaping should be of the “less is more” variety, and short dolly shots of momentary occurence are more effective as a rule than long, continuous, involved dolly shots – of course some entertainment folks might disagree.
With that thought, a relatively compact and portable dolly rig that with fast and easy setup/breakdown could fit the bill for adding a bit of something special to your shoots and resulting content. But then, like Billy Idol once said: “…too much is not enough…”
