Distribution of Packer tickets within family
It will only get worse as kids grow up and everyone wants to get their hands on them. If he has kids, those brothers-in-law have kids, etc. the availability becomes scarcer and scarcer. Those brothers-in-law are probably bragging how they have season tickets when the reality is that they don't. They belong to your family, not theirs yet their perception will be different.
My aunt has both the Green and Gold packages. The way she got around this issue is that BEFORE the money is due she has a list of people who she offers the ones she won't use to. Her kids get first crack, grandkids, get second, and then to her own siblings. If you are interested in tickets you pay her BEFORE the money is due...not after so that she can avoid fronting money on unclaimed tickets. If you don't pay, too bad. Any tickets that are left unclaimed/unwanted by the date that money is due get turned back in to the ticket office. No hard feelings, no escalating interest charges, everyone is happy.
What I did was put my 2 year old son on the waiting list, he was number 103,000 something. Didn't think much of it, but then I started getting emails for tickets. They apparently give people on the waiting list first crack at leftover tickets or something like that. I could have went to each home game this year if I wanted to. Like Benuts said, tickets aren't hard to get. I'm guessing the seats were maybe not great, but I could choose to go or not and had no financial responsibility if I chose not to. I like that better than paying all that money each year, especially with a preseason game included in that.