Based on your other responses, what you intended to convey and what many people are interpreting are two different things.
What everyone else is saying is that the person in seat 34F likely did not pay the same as the person in seat 35F (since they purchase at different times and the airline continuously changes prices), whereas what you are claiming is that 34F and 35F cost the same for the same person.
What I am claiming is that there's no difference in those two seats' prices at a given point in time. Yes, prices fluctuate, but that has nothing to do with the seats. When you purchase an economy ticket (assuming these two seats are both in regular economy), the prices for them is exactly the same at that moment in time. You're allowed to pick either one of them, and the price is the same. Wait a week, however, and the price will be different, but it'll still be the same for both seats.
I really don't understand why people on this forum don't understand this and why I have to spell it out in such explicit detail. It's self-evident.
Even worse, this means that, if the people in 34F and 35F purchased their tickets at different times, they could have paid different prices, but that doesn't tell us anything about which seat cost more. Either person could have paid more, depending on when they bought their ticket and how the airline adjusted pricing during that time. So, as I've been saying all along, there's no difference in value between those two seats, by virtue of their location on the plane.
What everyone else is saying is that the person in seat 34F likely did not pay the same as the person in seat 35F (since they purchase at different times and the airline continuously changes prices), whereas what you are claiming is that 34F and 35F cost the same for the same person.