Last Speakers Aerial 20T or Vandersteen 5A

And here's another thought. The Vandersteens maintain their value better than probably any other speaker, so if it turns out you're unhappy with them they'd be easy to sell.

Also, I haven't heard the 20T, but I have heard the 10T several times and the Vandersteen is just a much better speaker -- if you're looking for coherency and accuracy, that is. IMHO.

Inna: You make a good point. There are indeed lots of other great choices; however, the post specifically asked about the Aerial vs. the Vandy. And I'd hardly classify Vandersteen buyers as caving to "herd instinct" -- or mentality. In fact, many audiophiles, myself included, for many years dismiss Vandersteen as being too common -- until we've owned much more "exotic" speakers and discover that the Vandersteens actually deliver great sound for not that much money, relatively speaking.

Are there better speakers? Sure. But probably not for the money. IMHO.