There is no difference in the technical sense. The answer is NO to questions like:
Will the site load faster if it is .com or .rs
Will the site display differently if the domain is .win or .net
Does the domain have to be purchased at the same place as the hosting? The answer is again NO.
The domain and hosting are only connected through the NameServer and that's it.
The only difference between domains such as .win for 250 dinars and say .rs for 1900 dinars is the position on search engines.
How? We explained that in our previous post. But here we go again.
Google looks at the extension ie .win or .rs to determine which country to display. Of course, you can set the country you are targeting in google webmasters tools and thus buy .win and mark Serbia.
BUT Google still prefers the .rs domain over any other when it comes to ranking when searching from Serbia.
Bottom line: if you don't care about the site or it is only made for a certain group of people then you can take any cheap one. Or if you are taking a test domain. And if you want a site that is used for presentation and sales or providing your services, then definitely .rs, first of all because of the ranking, and secondly because people are used to .rs compared to, say, .win

