I found the post about judging people in order to tailor your "sales pitch" thing a bit hmmm.
So you think it would have been better to pitch well outside someone's budget, and waste both our time, and have them walk away feeling bad because now they want something they couldn't possibly afford and / or had to settle for the cheaper version? Or was it better to pitch within their realistic budget from the beginning? I know which approach I would prefer, as a customer.
I'm quite interested in whether sales assistants are correct most of the time, when it comes to judging who has money to spend.
Well it my case I got to see if I was correct or not, as this was big-ticket sales usually involving finance. In order to see if someone was eligible for finance I would have to go through their income and record all their outgoings etc. I did get it wrong at first, but after a few months I was rarely if ever surprised by someone's financial position. But this was my job, I did this all day, every day, and as it was commission based I had an incentive to get it right.
Sales, as a skill, basically comes down to being able to read people, and this includes things like wealth and class.