Hi: I am looking to purchase either an S175 or an S185. The difference in cost between the two quoted prices is $1,100.00. My question is: is the Turbo and 10 additional Hp worth the $1,100.00? yes or no Another way of looking at it is the S185 w/air conditioning is $1,900.00 more than the S175. I would be using the machine for lanscaping and light construction work, what impressions does everyone have on a recommendation to lean towards one option or the others? Thanks for any input.