Yep, be prepared for double digit numbers when going underground! You can save some by doing the trenching yourself (if they will allow it) but regardless, it's going to cost a bit. But it's worth it! Is for me anyway. I really don't want to look out over God's creation(s) and be sidetracked by a bunch of ugly power lines.That does help put it in perspective. My house is 3/4 mile from the river, with a number of steep hills and ravines with lots of rock tween here and there. I have hopes to get power to the river one day, underground or via telephone poles, one way or another. Electric company wanted 15 k 12 years ago to do the job. Lord only knows what the cost would be now for them to do it.
But that's just me...