If not, what kinds of shoes are worn?
Pretty funny, that probably is the exact same tie! If I hadn't just gone on somewhat of a knit tie buying spree, I might have bought it...
On my monitor, I like the second one (wine?) the most, but that's just personal preference. There are also three knit-with-spots ties on the Knottery right now in green, burgundy, and almost-navy: http://theknottery.com/index.php?main_page=index&cPath=67&sort=20a&page=2. I think you're right when you say above that knit ties are at home in business or smart casual, but not conservative business wear.