Hilarious price differences

While I get your point, you can't really compare a "per night" place in Germany to a monthly rental in Greece. That's like comparing a Chicago hotel room to a cabin on a Smoky Mountain backroad.

I'm guessing Rob meant 200 euros per night...

AirBnB shows the average vacation rental in San Francisco costs $179/night.
You can rent a 2 bedroom apartment in Paris (Texas) for under $400 a month.

You don't need to cross the Atlantic to see outrageous price differences. Around where I work (Silicon Valley) you need at least $3000/month to rent a 1 bdrm apartment. Just went to see a 1400 sqft condo model in a complex they just built near my office and they cost over $1.4 million, for a 1400 sqft 3-bd condo! What can you buy with that money near Sacramento, where you are, just 90 miles away?

No, it was 200 euro per month. it seems that lower end studios and small apartments in Corfu town are listed at the lowest around 170 euros a month and up from there. This website is for long term rentals only. I imagine there is a long term lease involved so probably without a long stay visa it would be hard to rent, but still interesting to see.
Roberto, my wife and I actually met and started off our marriage in the Bay Area, and bought a home in the Sacramento suburbs in 1998 because it was so much more affordable. The Bay Area is nice, but not nice enough to justify the monstrous prices.

The contrast is due to the extraordinarily different levels of the two economies. It's not "funny," it's a simple economic fact that Germany is a wealthy nation and Greece is bankrupt.

Speaking of San Francisco...

Last month, I was visiting friends in Oakland and we happened to be booking our Airbnb for that at about the same time as the Airbnb for our trip to Berlin in September. The price contrast (or rather, lack thereof) was pretty hilarious -- in total, we paid about $650 for 4 nights in a studio apartment in Oakland, and about $700 for 6 nights in a nice one-bedroom apartment w/balcony in central Berlin (Mitte). I mean, I loved that part of Oakland (Lake Merritt) and the studio was nice, but Oakland is no Berlin by a long shot. Just thought that was amusing :)

I've often paid prices around €20/night for a single room in small pensions or tourist "apartments" in the Greek islands in the off season. (The word apartment doesn't necessarily mean fully equipped.) Might have got them lower if I'd bargained harder. For instance, one was a studio with kitchenette and balcony for a week in Palaiochora, Crete, in spring. Over a few visits, I felt there was quite a bit of construction or real estate converted to tourist lodgings, so they would be overstocked and ready to deal outside of high season.

For a single in Germany at a Pension or 2 star hotel in a city, which is what I need, I can expect to pay anywhere from 40 to 55 Euro mit breakfast, quite ample and adequate.

So I shudda hung on to the 750 ft. condo in San Mateo?