It's easy for me to get distracted at worship. I'll worry about my pager, or the next blog entry, or the headache that hasn't quite faded from the week before. I spent almost an entire Michael W. Smith/Max Lucado/Third Day concert worried about how I wasn't feeling all that much. I tend to emotionally think of worshi p as something for me.
But it's not. It's about praising God. I might be more comfortable with singing Christian rock, while my grandparents and their church needed the 75 year old hymn books in order to be comfortable. I can't stand a tie, the older generation can't stand going without. Some need to be formal, some need to be "even more undignified than this".
The key to it all is that point that I had to be reminded about yet again. The point of worship is that it's about praising God. It's about raising our voice to Him, to point out Him and to lessen ourselves. We can't think of ourselves in the process.