Although, when we sent strat shopping your buddy did give me a nice break on my MIM strat!
It's funny you mention that...Back in my days as a commissioned retail salesperson (hifi and high-end home theatre), we had pricing power at 4 different levels, from "A price" to "D price", with A being the tagged price and D being the private sale pricing. Too much D pricing would get you called into the owner's office.
The guys that would beat us up on prices never got past B price, and if they were jerks they were told that the grocery store didn't dicker on milk, so do you want the 13" TV or not??
However, our regular customers and their friends and family always got B prices, because they were the bread and butter of the business and usually a pleasure to deal with. These are the customers who change the shops they do business in because I found it time to change shops to work in. This was the culture of those businesses, not something isolated to my shops.
If you want bad service, spend hours asking questions about gear you never buy. Then whatever you do buy, return it during the pay period after the salesperson has received the commission. Nothing like starting day one of a new commission cycle in the hole. You will be branded in that store as a waste of time, and nobody will help you or it will feel like pulling teeth if they do. Also, go in and ask about an esoteric piece of gear and act amazed that they don't have it and would have to order it, usually at a higher price than you would get off the web.
Be sure to ask for high-margin items for free with a meager purchase. I always loved "If I buy these $400 speakers will you throw in some Monster Cable?" Hmmm...Let's see...Monster Cable sells for $1/ft, you want a 30 ft pair, so $60 worth for free....That's 15%....Nope.