Thank you for all of your perspectives
Some more perspectives/information. I can see that my post is lacking important details: 70% of my work is like mostly talking with people on how to reach solution (and possibly fixing it), 15% project work and 15% misc. It is a weird mix of sysadmin, technical support, and "internal process consultant". Deadlines are not a problem and I could even make it an easy work-week, e.g. 6-hour a day. We have a good infrastructure, thus remote connection is not a problem from that perspective - but internet connection at a hotel or café could be an issue as some pointed out.
I do not have a wife and children, but living together with a gf and one cat.
Regarding price I had in my thoughts just to use some of those cancellation trips which makes it quite cheap (Greece, Turkey, Cyprus, Spain... lots of cheap flights when the vacation season is over).
With all of that said, I can see it work, but it mostly sound like a bad idea :)
7½ weeks in my case One reason why the idea was somewhat appealing was that I usually spend a lot of my vacation with other people, but now and then sometime alone would be a nice change. It would be an easy way to go on an "ego trip" without sacrificing time with my friends.