I don't think the unit cost of a cartridge type device has dropped sufficiently to make it worth making the switch. If you can get a 60GB cartridge down to less than $1 in cost then I suppose it could be viable. But how far away is that? I doubt it would be in time for a 9th gen console, so 10th gen at the earliest, and by that time I think digital sales on console might be pretty much at a similar level to PC.
“The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.” - Bertrand Russell
"When the power of love overcomes the love of power, the world will know peace."
Jimi Hendrix







