This is typical of the salesmen in most high street retail shops,
they are rarely true enthusiasts and whilst they know how to push the box with the most profit, they actually know very little about what they sell, the majority of their customers also put themselves at the mercy of the sales staff, that is why this forum is so important, the general public are happy to be bamboozled into a blind sale, feeling safe in the knowledge they trusted a complete stranger who managed to baffle them with sales jargon, with glee they take home and open there box of tricks and watch it,
sometimes they these sales guys leave themselves open, and people like you expose them , game on, i love tying up sales staff in these retail outlets.