What's old is recently new again for me, too. I did Christi Taylor's Step Heaven the other day (after what seems like years) and actually got teary eyed as it all came back to me. Even though my brain was nervous anticipating the new moves, my body remembered most of the choreography and did pretty well.
That got me all excited and nostalgic and I re-purchased all my fave early Cathe step workouts, as well as Power Hour/MIS/Body Max and Pure Strength.
It gets a little pricey when what's old becomes new again.