[Steve_Seattle]

"They still haven’t declared their annual consumption of Windex or who has the mirror cleaning concession."

That's actually an interesting question. An open-air field of mirrors will rather quickly accumulate a lot of dirt, dust, dead insects, organic material, and - it seems - dead birds. It seems that maintenance might be a major expense, at the least, and maybe a very serious issue.

[BuffaloJack]

If a bird is killed in flight and plummets crashing into one of the mirrors, how much will it cost? How often will this happen?