OK, so some people use the term 'borrow' when it comes to using other people's website content. If you are a travel company for instance, what harm is it if you grab some text from a chamber of commerce website?
Well, let's first take into account (and many don't realize this) that using other people's content (or text) from a website can be considered copyright infringement.
If you still do not think this is bad, maybe this will do the trick; search engines are clever enough these days to detect sites using similar content as others. This can cause your site to either rank low, have a hard time even getting ranked, and the ultimate punishment; the site can get banned.. possibly forever.
Think about it... it may be worth the time and money if you have to hire a professional writer.