I bought one of the dick pumps when I became single after a 10 year relationship and was a little sex crazed and hoped I could turn my cock into some hetai sized thing.
Absolutely wasn't worth it as I couldn't get it to seal properly and I wasn't going to shave it all down.
In the end just taking Cialis was the best bang for your buck. Extremely full erections and huge pump in your muscles. Take it before a workout and meeting up with a chick.
I also took the cum stack and while it's probably not worth the effort it was gratifying to blow in box and have the girl comment on how it kept flowing out.