I don't know for sure but, my $$ are on he told you he would buy the JBL was to simply shut you up.
Look, if you can't trust your own judgment, do you really think you'll be satisfied if someone else tells you something?
In all honesty, with your inability to commit, you're never going to be satisfied with whatever you wind up with. There's always gonna be that little voice inside saying to you "I think I really liked the other one better." ...better get used to it.