Dealers unload battery cars like they are toxic waste. Look at carmax they do not have leafs or teslas. That is why they go to auction1) Seat does have the secret pocket
2) There is also a seat modification Tesla service center can do to soften up middle bottom of seat... so you sit a bit lower and brings side bolsters more into play. However if this is working for you, suggest you leave it!
3) Auction does not always mean bad things. Trade-in cars often go to auction. However, it would be wise to have thorough inspection by service center prior to purchase... even if they charge you for that.