Yes, I forgot the flip-up targets in my list of experimental features.
The roulette is not thát unique. It appeared on some EM machines. The mechanic itself is pretty much unchanged from the EM version. Check Fan-Tas-Tic, Super Score, ... It even appeared again later, on Riverboat Gambler.
It is true that, besides the cost cutting, there was a lot of creativity among pinball designers in the beginning of the eighties. Lots of great and original games.
Quoted from Hellfire:
Speakeasy might not be the most desireable bally but it is one of the more original and a big part of the reason i like it.
And that is exactly the same reason why I like mine.
It's actually quite funny how I bought mine. I went to a guy to buy a Bally Mr. & Ms. Pacman. He had 2 for sale and I could pick either one. However one was in normal shape for a 30 year old machine, while the other was really beat up.
Next to them stood a Speakeasy 4 that he was also selling. Not working and uncleaned for years, but cosmetically in a really nice shape. So, I went for that one.