Well you can look for yourself
Wisconsin - They seat by priority points and they recommend contributions per seat for certain sections to have the minimum points necessary to sit there. This is basically how Purdue does seating as well. The contributions are to their JPC and there is no fee on top.
http://supportthebadgers.athletics.wisc.edu/tickets/fbnewtickets.aspx
Michigan State - This page explains the donation to the Spartan Fund (their JPC) to sit in sections. You'll notice they don't start at $100. There is no fee on top of the Spartan Fund donation.
http://spartanfund.net/tickets-parking/football/tickets/
Iowa - Their contributions are all part of their JPC giving levels. They also start at $50 for seats around the 10 yard line. There is no fee on top of their I Club donation (their JPC).
http://www.jointheiclub.com/gameday/prioritypoints#football
Keep in mind that with these contributions, they are part of these school's "JPC" levels. So if they have 2 seats for $100/seat for their donation for football - that $200 also counts as a First Team JPC membership that also counts for basketball.
So basically Purdue is double taxing/double dipping by adding the fees.
My thing is - Purdue's NOT these schools. Morgan complains that people at Wisconsin are paying $400/seat at football and we're only asking for XX amount. Well, that's misleading for a couple reasons. First off, Purdue seats based on JPC priority - so to sit on the 50 yard line, you can't be donating nothing to the JPC. So you're already making a donation to the JPC to sit on the 50 yard line then Purdue's adding on a $250 per seat fee ON TOP of that. So in all reality, Purdue's probably making more than $400/seat because of this.
Secondly, if Purdue wants to instill per zone seat donations, they can. I don't get why they feel it necessary to then add a completely separate fee. The reason is they want to double dip.
Third, at all of these other schools, as I mentioned, their gifts are not only for football. The $400/seat donation at Wisconsin counts as part of their "JPC" level donation, so if they have 4 seats, that's a $1600 donation that also counts for their basketball tickets if they have those.