OK, i should have seen this coming. I understand that this is the explanation for every age goods up to but not including a newly released age. For people not on the most current level they might need the goods to get a GB far above their age. BUT...for any good that is plentiful (e.g. all goods below SAAB) a halfway decent guild can gift you the few hundred goods needed to build a lower age GB. For example, anyone in my guild can get the goods to build an Arc from me anytime they want. Right now I'm sitting on 15k or more of each Future era good, and nothing to do with them. Honestly the only thing people in my guild can't get by asking is SAAB goods, b/c we don't have them yet. In 6 months I'll have 10k+ of each, and they can get them too.
So my question was abbreviated to be overly simplistic, and that is my fault. But the whole thing was predicated on the idea that guilds help younger players advance. They stronger they get, the more they pay it forward and back.