Comparing used prices against new isn't apples to apples.
A new MSD costs $1400.
I got my ATP with programming lead for about $800, almost brand-new.
That said...the majority of us will buy a used brain/TL setup well before we would shell out the dough for a brand new setup of either. If a used TL works then it's as good as new to me...it does the same thing a new one does for a fraction of the price. Soooooooooooo, here's the math
used TL brain/coil/relay/plate (lets say dual pickup) = 300-600
used brain #2 (
first crapped out) = 200-400
used brain #3 (
more bad luck from a dead beat x-H2O seller) = 200-400
used brain #4 (
retarded buyer can't throw a rock in the ocean) = 200-400
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TOTAL EXPENSE FOR USED BRAIN/COIL/ETC... = $900-2000
ATP setup new = $1200
needed cable = $60
shipping = $40
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TOTAL = $1300.
You may not be able compare apples to apples, but I can compare dollars to dollars and my money's on finding one decent MSD brain within 4 attempts. I'll bet my first or second one is a winner. I've bought two well used setups and both worked fine.
All B.S. aside I imagine the ATP setup is a first rate product, as is all there stuff. There's so much MSD stuff available and everybody under the sun is around for advice with setup and maintenance that it's a no-brainer for a hack like me.