What was your most regrettable Sci Fi Event purchase?

I bought

Robo Burns bundle
Frink Bundle
Future SF sigh
Ele Car bundle
Eco house
UH2
Rocket Car bumdle

I regret nothing, though UH2 was easily the worst value for money.

I've bought everything that came out minus the Electric Cars and the decorations. I also regret nothing.

I only got lady bot and roboburns and their appropriate buildings and both are ok. Dont love them but definately dont regret them.

I bought the robot burns pack and the teleporters and I don't regret buying them