Take The LCC Challenge
I would like to know whether the extra 'seat service' for your 'extra buck' also means these 'premium' seats receive an extra cleaning ?
Just for sh*ts and giggles, on your next flight I challenge the unitiated to reach with their hands down besides the seat cushions, and even under them if you can sneakily lift them up. You will find a huge amount of hair, food stuffs like lollies, gum, bits of bread crusts, gum, more hair, and the occasional dried out chunk of spew !!
A further challenge would be to run an ultra violet light over the seats if the cabin lights were dimmed low enough, now that would reveal an interesting selection of secretions !