well... aye! Motherwell and most other clubs really struggle to get by. SPL clubs are skint and more games against Ross County instead of more games against Rangers and Celtic just aren't appealing. I know some people will criticise it for being shortsighted but as McLeish said its not financially viable to have more than 10 clubs right now. Teams like Motherwell are working on a season-by-season budget. We don't have the funds to take a hit for a few seasons. We need to maximum funds available every season and right now thats with a ten team league.
The product will be diluted with weaker teams in the league, with TV money maybe going down, and the TV money will be split among more teams in a bigger league.
Ideally I'd like a bigger league with more teams and stadiums to visit but it seems that it's just not possible for a country like Scotland.