I think Lindsey and the band are well aware that any album they put out will not sell like their previous albums. I've always taken his 'big machine' comment to mean that as a solo artist he plays smaller venues and makes little money -whereas Fleetwood Mac play huge arenas all over the world, travel in private jets, stay in lovely hotels etc etc. I don't think they expect to make lots of money out of releasing new material. Especially the way the industry is at the moment. They'll make money from a tour no doubt - they definitely have the ability to fill big arenas still.
I want them to put out new material regardless of the state of the music industry (and the fact it may not sell in the numbers they hope.) Their next album should be a labour of love for us loyal fans
!