Here's how I see all this in trying to get into WB's tiny little brain
He uses Slimey and a box with a brick in it to get IS to let him buy the new FFders he's wanting. When he gets home, he fakes being uber excited about someone giving him the fish finder that he's been wanting and all he is telling IS is that he helped the guy out getting a super deal on a boat so he gave him a FF. Now, here's where his trickery really shines. He Tells IS that since he got this one given to him, he can sell the other Lectronics he has and get that shiny new HDS 10 sohe'll have a matching pair that will interlink. SO in the mean time, he sells Feelay his old stuff to pay for his new stuff and low and hehold, Nothing but a brick in the box. He's crying to IS that he should have checked the box and he wouldn't be in such a predicument as he is right now. Well, he's good at playing the sucker so after a few hours of hearing him whine, watching him cry, he lets HER suggest that he go ahead and get a new one of what he thought he had in the box. Sounds very plausable to me. Nothing but a setup to get IS to let him swap Lektrinics
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