You're changing your oil only every 7k miles? Manual calls for 4k. My old Honda XX had 8k oil changes per the manual.
I usually change the oil every 4k, and the filter every other change.
Yes, I do 120 miles a day to work and back. The miles add up quickly and since I use a premium oil and filter, I do not see a problem with running them a little longer. The RPM's do not get above 8K except for the quick spirited burst in the country.