I like to watch the matches which I'm interested in more excitement and that excitement you can get when you bet a small amount on those matches. If you play with free money you will not get the same excitement at least for me so I usually bet with a small amount. That doesn't mean that I'm playing for money but somehow it gives more thrill to watch the complete match. Also, I will not do it every day but do it when I got a free time to watch the match.