I'am a part time lawn care professional (15-20) hr per week. I take this very serious and run it like it's my only source of income. Now for all that is capable here is my question. I am ready to purchase a new trimmer. Right now I have employed a 31cc Ryobi ( OK hold the laughter down ) I bought this trimmer back in 1996. With 3-4 hrs per weak use, I would guess I have over 1000 hrs on this with only two minor repairs. So to get to the point I can buy a new one for 108.00 at that price and the hours I got out of it. 108.00 into 1000 hrs=10.8 per hr this seems to be a good value. Did I just get lucky? How many hrs can I get out of a higher end trimmer?