Yes and maybe. Yes, just like there was a bubble when it broke $200 in April 2013 and it came back down. Maybe, just like there was a bubble when it broke $200 in April 2013, came back down and continued rising beyond the $200 point.
Most people, for good reason, use an escrow agent when buying and selling real estate (at least here in the US). As a buyer, I would be doubly uncertain about directly transferring someone Bitcoin since it's at least as irreversible as a processed wire, and probably harder to have good legal recourse for. If you can find someone who would do escrow with Bitcoin, you'd probably have better luck.
Take a look at BitPremier: http://www.bitpremier.com/. They advertise your high-value good on their site, and then once they pair you up with a buyer they also serve as an escrow agency.
Doesn't even have to be "from abroad" - if a buyer has a stack of bitcoins and I want a stack of bitcoins, going through an exchange is going to be expensive given the pretty broad spreads (if there's even the necessary liquidity).
Beautiful landing page.
When I click "sign up for free" the "begin selling now" text was on the bottom third of my screen, should be in the middle or at the top.
You are probably getting such a low CTR because you are mixing Search and Display. First step is always to separate Search and Display.
You can push description line 2 to the display url.
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Always A/B test, continuously. Never stop testing new ads until it is blatantly obvious that one ad-copy is superior.
*Make sure that your keywords can be found in your ad-copy. If your keyword does not appear in the ad-copy, you WILL have lower CTR. I guarantee it!