Hey fuck head. That picture is an Economy ticket not Preferred Economy. You can see that with each seat in economy the price is the same. I know you want to make up some bullshit, but at least fucking read the proof right in front of you.
You don't know the difference between basic economy, economy, and preferred economy. You're argument is dead and you are WRONG. Period.

Picking basic class isn't poor, it's just has limitations like only 1 item and, get this, NOT PICKING YOUR SEAT FOR FREE. Economy tickets are usually just a little more than the basic economy and if you don't care about the seat, great. But if you are going to pick your seat, why are you getting a ticket that costs more to pick the seat, when a economy ticket lets you pick the seat and is cheaper than the combined price of basic + seat charge + checked item.