I remember when these were first announced back when I was a Conte dealer, I thought they were great, so much action and animation in the sets; customer reaction was luke warm, I ordered a lot of these and couldn't give them away.
Slowly over time they sold, then once they were retired, people came out of the woodwork looking for them, still get requests on these to this day from customers.
I came into one of each via a collection purchase about a year ago, they lasted about a day once I posted them up on my site as available.
Just another example of as a collector, if you see something you like, it's best to pull the trigger ASAP or else you might be SOL.