Go with a 33" wide area mower. The motor is double the power which means half the time to mow. Price wise it's like $400 for a good 21" mower or $1,000 for a 33" wide area mower. The wide area holds the value better too. I did our lawn with the 21" for the last 2 years and upgraded to the 33" this year. I've mowed the lawn 3 times now and it's way way way better! My mow time went from 3 1/2 hours to 1 hour 20 minutes.