You have to sucker in the customer to commit to shitty deals, like buy a certain phone and get one for free or some other bullshit like that

You wanna make it seem like the best deal there is the shittiest buy and they'd be better off with something more extravagant.

Most of your sales are going to fall in the cozy middle ground, and believe it or not you can get somebody to buy something they don't need by shitting on all the products below and above your optimal sales range.

By shitting on the expensive phones and plans you endear yourself as an honest person and not a sleaz who's just trying to peddle crap.

Like at a mall stand, or at a store? If they're in the store they're probably there to buy a phone or other item anyway, so the sell shouldn't be hard.