I had a 2005 Yamaha Royal Star Venture and it came with Cruise control. Then I look at a 2013 Tenere and it does not have it even as an accessory. My 2013 Victory has heated seats for driver and rider with separate controls and heated grips (all with low and high). All of this came stock with the bike.
So if the technology is out there why is it not on the adventure bikes. It can't be because they want to keep the price down as they are already high priced. The manufacturers seem to be catching on but it is taking a while.