I think the point of my post was that I don't know my ass from a hot rock on the topic and was looking for assistance.
The point of the other posts was that you did not clarify what you want to accomplish with the printer. Without getting more specific than a "4x8", there is no way for the others to properly advise you.
There are essentially three types of printers - roll (vinyl), flatbed (substrates), and hybrid. We can already ascertain that you do want a small printer. Now if you were to indicate what your bosses wishes are, AS WELL AS budget (not a slam)- then you can get more concise answers. There is no one shoe fits all. You would need both a roll printer and a FB to cover all of your bases. A quality roll printer (60" with production speeds) will run 30k to 60k. A quality FB can be anywhere from 60k to 400k. Theoretically, your boss would be looking at 100k, plus all of the support/finishing equipment.
Where do you fall - vinyl or substrates? What kind of production do you require? How much digital vinyl does an "ES" really use? Are you guys venturing into new "stuff" like wraps?
I would be inclined to think that a 20k Roland printer (not for production wraps), laminator, and a good flatbed would suit your needs. The pitfalls vary by brand, usage and distributor. I know nothing of flatbeds but can tell you that you need to set a budget and road test what fits the same, while asking specific questions about what you are leaning towards.
Lastly, once you decide and purchase, that is when the fun really begins.