You could hire someone for $350 per planting. At $50 per hour that's 7 hours and $1,700 divided by $350 is almost 5 years worth. You wouldn't be responsible for maintenance and upkeep, costs for fuel, oil and lubricants, filters, tires, implements and their repairs, transportation to and from the field. But then you wouldn't have as much fun, you wouldn't own the equipment, and nobody is criticizing you for how you use your resources.
I can get three non-adjacent acres done in an 8-hour day - bush hogged, disced, fertilized, seeded, and lightly spread in one day. That's one food plot of 1.25 acres, two by 0.50 acres, and two by ~1/3 acre each plot. If they were all one plot I could get more done than 3 acres. Do you plant more than that? Other ways to use a tractor come up after you justify and purchase one. I have put in and smoothed driveways with the box blade, spread dirt (and gotten paid), pulled hay rides for kids, pulled parade floats, disced lawns and football fields (and gotten paid), lifted, transported and stacked heavy equipment/materials, pulled stumps, and bush hogged groves and food plots. The uses are as endless as the possibilities.
Are you concerned about draw bar roll over from implement drag?