Have them both. Love them both. Both super nostalgic. My mom and dad brought home a Gorgar from a local arcade in the 80's when we were kids. Our first pin. Feels kinda like you're playing against Satan and want to beat him and hear him acknowledge it... "You beat Gorgar".
Blackout was at the small arcade outside of the movie theater we walked to as kids. So cool to get that thing all revved up and high pitched only to hit the saucer and watch the whole machine power down. Coolest thing at the time and still pretty damn cool.
I vote get rid of Firepower. Having said that... I'm looking to pick one up in the future.