I am ASP.NET developer from last 5 years and still loving it. There are lots of good voices in air about Ruby on Rails. I want to ask to community, Is there any worth trying to
Well I dont know anything about the Scalability part, but personaly i started learning Ruby On Rails from ASP.NET a while ago. I really had a hard time finding some good documentation - the class documentation on Rails site was really poor in my eyes, and I had a simple question about what arguments you could put into an actionlink. But maybe it was just me who never found the right place. But personally i think that the ASP.NET documentation is better than rails - at least buy a book, i think thats a good way to go.
Number 3. Im pritty sure that there is very good Community Support for rails you just have to find the right forum or other media that suites your liking - maybe this what was I did wrong.
Number 4. There is alot of hosting solutions for Rails, but not as much as ASP.NET or PHP. I think you have to research this your self, and find out, if there is anything that suites your likeing.
Number 5. Ruby should be very easy to deploy, it has a notion of a development, test and production database. It uses migrations, so updates in the database schema is seamless - thats very cool. It is scripting, so it should be a matter of xcopy from the development computer to the production server.
The reason you should choose Ruby on Rails is if you like the MVC pattern. The MVC pattern is genius, and ruby is a great language when you learn it. Maybe take a dive into the ASP.NET MVC, and see what its like - then maybe move to Rails. Then you only have to learn a new language, and not a new arhitecture, framework and language at the same time.
Remmember this is from a ASP.NET Developer who sniffed to Rails, but gave up, doe to the lack of ability to find really good documentation, and there was always some strange errors, from the editor or Rails - but thats properbly a newbie thing :)
But if you have time, by all means learn it. Some developers say that we should learn one new language per year, and Ruby is a great candidate for that.