As a SnapAV/Dragonfly dealer, I'd like to take a moment and debunk a few myths:
-Product Pricing -
1. Rarely are dealers ever looking to screw a customer, especially if they've been around a while. The reason you see fluctuations in price is due in part, to circumstance. For instance: If I have an order for a screen to be installed for a home builder, it's put into inventory, and the project falls through, guess what? I've got an extra screen to get rid of. Maybe I have a deposit on it? I can sell it for even less. Just because I'm willing to move that screen for $500 and the other guy has to buy one for twice that price, doesn't mean he's screwing you.
2. Dealers buy at different levels; The more product I purchase, the better my price. A dealer who buys a ton of Screen Innovations, (SI), will likely push and price a black diamond for less than a dealer that sells mostly dragonfly. Turn the tables on the SI guru, and you'll see what I mean.
3. The custom dealer could, and often is, selling more screens than a retail store. His overhead is low, (No Showroom, and No employees). He can justify a lower margin, because he's a "lone ranger". If you still have a Retail store in the neighborhood, and they are shooting you prices that seem high? Trust Me, they have PLENTY of clients paying those prices. Many people so greatly value the "full service" model, that they don't care what it costs. Don't be a hater, and don't forget how to negotiate. If your truly a low maintenance customer, and you can convince me of it, you'll get a great price.
-Screen Yellowing -
Screen Yellowing is real. I won't name any brands in particular, but most screen manufacturers use oil based paint as the base for their coatings. Oil based paints will yellow, especially when exposed to sunlight. The necessity for screen coatings depends on the room. Some manufacturers such as Severtson use water based coatings to prevent yellowing. Dragonfly screens are not "coated", and therefore won't yellow. They will on the other hand, seem underwhelming when compared to a competitors screen under various lighting conditions.
-Screen Manufacturing Similarities-
I can't say for sure how modern patent laws work, and how they apply in China. I think that SnapAV has figured out that the US patent process is too long, too costly, and often ignored; So maybe they don't bother anymore? The Dragonfly fixed-frame product was unique when I picked it up. If similarities exist in the market today, I can assure you; SnapAV was first on the scene. They continue to tackle the issues that bother integrator's the most, and for that; I'm thankful.