I am having a new house built. In trying to keep the construction cost close to our budget, the builder priced out the roof with the Landmark 30 shingle. Is there much difference in appearance and cost between the Landmark 30 and the Landmark 40 or Landmark 50 shingles, assuming I could afford to upgrade. The house will be built in West End, NC 9 miles outside of Pinehurst, NC. The house is 2300 heated sq feet with a 570 sq ft garage. The roof pitch is 12/12.