Originally Posted by fallenangel1
Personally I'd rather give up "some" of the thinness for an internal power supply and you can place more LED's in the frame when not edge lighting.
My personal preference is to give priority to making it as thin as possible since in my case the frames will be near a wall corner, creating an up close side view of the frames at times. An internal PS would add no value to me since I will be hiding mine, and all the cords, in an outlet pocket recessed into the wall behind the frame. Though our preferences differ, I don't think either is right or wrong, nor one design better than the other in all situations. You seem to be leaning towards offering different choices, and I think that is wise instead of going for a one-size-fits-all approach.
I think at least to some degree you can offset the problem of less room for LEDs with edge lighting (compared to back lighting) by using brighter LEDs to achieve the same total light output. But I think as one attempts to use a "fewer but brighter" LED lighting approach, the quality of the diffuser becomes much more critical.
On the internal PS option, if I was interested in that option I would have concerns about possible heat build up that might be harsh on my posters. An internal PS wouldn't necessarily be a deal breaker, but you would have to convince me that you are aware of the potential issue and that you did your homework, design, testing, etc accordingly and adequately to insure that the heat build up wouldn't become excessive.
The frames you pictured looked very nice, I think are at a very reasonable price point, and I think you will have no problem finding demand. But keep in mind that a certain percentage of people will still want to take the DIY approach even if it reaches a point such that they know it will be a little more expensive to DIY. Some people place a lot of value in the pride of knowing "I made that" every time they walk by one of their DIY projects, and prefer to build exactly what they want. But I'm sure there are many more people that don't have the ability, time, and/or desire to DIY, and that would love to buy one of yours.