Break the cost down into parts, labor, hauling, and time. Then make a decision what to do. Just like eating out, having someone else wait on us is not cheap. That's why they are in the business, to make money off usn's who don't want to do it ourselves.
Figuring $120 for hauling, brings the cost down to $280.
Then 2 hours of their labor (?) for $130-$140, down to $140.
Then subtract the filters, oil, and other parts, and it doesn't leave much left to account for your time if you do it yourself.
But, I think you should do it. The experience would be great, unless you've done it before and don't need anymore.
Otherwise, buying a trailer to haul it would return $120 to you. /forums/images/graemlins/wink.gif
If you have the time, and do it, let us know on TBN so others can make the educated decision in the future.