I think Stern selling "extras" is a great idea from day one with all the models whether Pro or Premium or LE.
The car industry has been offering extras on any model from day one and its a great idea.
Eg - spoilers n mag tyre packages, paint upgrades, side spoilers or bonnet spoilers, motor upgrades, interior upgrades, stereo upgrades and the list goes on.
Why shouldn't the pinball industry offer upgrades from day one.
They can't just design the entire system around keeping the LE buyers only happy. The Pro and Premium sales numbers per title sales outsell LE buyers by four or five to one easily. The extras or upgrades n toppers n sidearm packages are designed to give everyone a chance to personalise their machines.
This is a good thing not a bad thing. Stern has smartly looked at the big picture.