posted 9 years ago
That sounds like a pretty good price, based on a very cursory web search!
Possible things to consider that you haven't mentioned:
How much insulation does it provide? (R-value)
Do you want transparent, or something that will provide diffuse light?
How strong is it, to resist snow load, goats climbing it, etc?
'Theoretically this level of creeping Orwellian dynamics should ramp up our awareness, but what happens instead is that each alert becomes less and less effective because we're incredibly stupid.' - Jerry Holkins