They're desperate. Besides, if you want to park a couple of grand with me for six months, I will give it back to you too, in full, less any interest I make on it etc yadda yadda yadda.
Read the fine print and dont expect your labour and install charges back either. Nor the extra batteries and solar pannels and and and that you'll need to install just to keep the system running so your batteries dont go flat and cause your boat to sink in a sulk cos the bilge pump now stopped working. If they were so blimmin great every boat would have one on, probably demanded as factory spec, cos we all hate slapping on AF.......don't we?

But if you love going to bed with the hum of mosquitos in your ear you'll love these puppies....or so I'm told