I average at least 3000# of pellitized lime per year, using a 200# capacity drop spreader, with aerators pulled behind my rider when I mow the lawn. Dual duty - mow and lime in one pass and the drop spreader has much better control than a broadcast spreader. I also buy my lime at the end of the season for the next year - bought 40# bags for $.40 at CT Farm and Country this year, bought all they had at 2 different stores.
Once every 10 years I do the hay fields, buying bulk pulverized limestone by the 10 wheeler load, (20+ tons at less than $10/ton) and borrow a pto driven spreader for a weekend.