I agree Charly and that's the way it should be. Set Prices.
As for people not buying the more expensive sets? That's short term thinking. They aren't willing to invest money into their business. Still the old quick buck mentality. Pay the cheapest and give the members shit.
The irony of it all is, buying cheaper sets may increase your profit margin but won't increase your profits

Something the quick-buck guys won't ever understand.