What are your maintenance costs?

Hi all,

My name is Hank. I'm new to the forum. I presently own 2 BMW bikes, an R1200RT, and a F650GS. I have the F650GS sold as of today and I have always had an eye on the Multi. I'm getting a good deal on a 2007 Multi 1100 demo with only 27 miles on it but I have a few questions before I finalize ...