If your tires are wearing fine and you are not pulling to either side, don't waste you $$$. In the past I always paid for an alignment when I replaced my tires on my cars and trucks. Then finally an honest tire dealer asked me why do I want an alignment if everything is wearing evenly. They typically put it on the rig, do no adjustments and charge you anywhere from $49 to a $99+ for their time. I've never aligned a MOHO and the only alignments I have had on my cars in the last 10 years is after I replaced the ball joints. Unless you have an issue, I wouldn't be concerned. Good luck.
Lou
05 Travel Supreme Envoy