Oh wow, $3.00 for a whole pie? NO WAY! Since most make 8 servings, I'd say at least $8.00? (This is why I never got involved in pricing; the pricing committee always wanted to GIVE it away!)
And yes, REALLY special brownies, more than $1.00 apiece. Definitely. There were always some little dried up box-mix brownies that went for a quarter apiece or some such amount.
Pricing is a difficult subject!
As for the Bacardi Rum Cake, I'll bet you can find it on their website. I don't THINK I have it...hold on, let me check...nope, don't have it. Sorry!
"No one can make you feel inferior without your consent." Eleanor Roosevelt