How would the manufacturer know? Maybe our confusion is the term "demo". It sounds like maybe companies might provide a free or heavily discounted (from your normal wholesale price) demo unit. But either way, if you are willing to sell an item at a discount, and believe it is beneficial to your business to do so, is there a way the manufacturer would know if you were passing off new inventory as new or cycling through demo unit (taken from new stock). This seems like it would have an appeal as you could discuss the MAP price and if a buyer seems to be stuck on pricing, you could offer the demo unit (which may have only been on the shelf for a week after you sold the last one. IOW, it gives you a graceful way to give a discount to the people who need it and charge MSRP to the people who aren't so concerned about the price.*
Alternately, you could say you have an open box return from a customer who decided to return the item before he even hooked it up. Offer it at a discount - if he wants it, grab a box cutter, quickly cut the tape, and bring the open box out. Does MAP have a way to track returns, etc?
* Everyone wants the best deal they can get, but I know when I was growing up many of the smaller shops would vary prices according to the buyers means. I have seen shop owners even take a loss to help a man who was down on his luck. But I am talking small towns where people know a little of each other's story! I would be inclined to say this isn't really fair, but it is the right thing to do! It is disappointing to see how far things have strayed from that sense of community. For that small town, it is still there. The problem is their economics have generally gone downhill, so generosity is harder to give!
Demo pricing usually comes from filling out a form and buying direct, even if the reseller normally buys from distributors. Since they allow one piece per person per year, tit's pretty easy to know if someone is trying to scam the manufacturer.
Open a box, call it a demo and give a discount? How many times should someone do that before they realize they're not making money? Selling at cost doesn't equal breaking even, it means money was lost because placing orders and using the phone or internet cost money, as does keeping the lights on and having people working at the store, even if it's just the owner. If anyone does this and doesn't pay themselves, they must really, really love it.
I have posted about an AV business that I considered buying- it would have cost over $145K/year to operate without buying or selling anything- those were fixed costs and payroll. Well, except for the little detail that it wouldn't include ANY pay for me. If the average profit margin is 20% (margin points, not % above cost), it would have to generate $725K/year in sales just to cover that amount and if I wanted to make $50K, it balloons to $975K, assuming the admin doesn't cost anything to employ me. But, it does cost, because the company has to match everyone's FICA, so add $3825 to the $975K.
Rent, was cheap utilities aren't, there was only one full-time employee and he wasn't covering the cost to keep him, but he did repairs, so it was a good way to make money when sales were down, if the owner hadn't decided to stop advertising four years before he started the 'Going Out Of Business' sale. If he had continued the ads, I would have considered it more strongly, but the price would have been significantly higher, so.....
This business is feast or famine- anyone who knowingly turns down profit is a fool. I can see giving a deal, but once that becomes public knowledge, it's time to kiss the regular price goodbye. Also, it's illegal, in Wisconsin, to discount from an advertised price. Do it for one, do it for all.
As far as opening a box and taping it shut, it's also illegal to sell used or demo as new. Boxes are opened by mistake, but if someone wants to be a royal PITA about it, they will.