Just our observations that we have many full-timer friends and not one has a washer or dryer, including us. We've all been full-timing for over 10 years and don't have spiffy new rigs so perhaps that's the reason. However, we've never missed a W/D. We much prefer to get 2 weeks' worth done in 1-1/2 hours at the laundry and we've never seen dirty laundries like some people state. We couldn't stand to do laundry daily.
Everyone's different. There's no yes or no answer. It's what YOU prefer to do.