Looks to me like a lot of time and trouble trying to find only those items that you've had for over a year. If I were you I would run a sale with maybe 5, 10, 20 you pick the percentage off of everything in your store for lets say 2 weeks and see if sales increase. I believe you will see a dramatic jump in the number of items you sell during the sale period. I run sales every month and total items sold usually double during that period. Do a lot of testing and try different things.
