So I wander in to a shop yesterday and see the Wii MotionPlus add on - double-take-price-gouge-mongous £22.99! RRP is actually £25. For something the vast majority of owners likely assume it already does?
Ok so you buy it with a game and it comes down somewhat - but if you only want one game and want to play it two player?
Now a "complete" Wii controller RRP = £33 + £18 + £25 = £76! (about £65 if ordered online)
(NB: US price RRP is $25 - thanks Nintendo!)