Ending Slides are a big part of Fallout as they let you know how you changed the world by your actions. A good story always has a memorable ending. Fallout 3 really didn't end on a good note, and ended with Ron Perlman either praising or chastising you. The capital wasteland really didn't change. This is a stark contrast to Fallout 1, 2, and NV.
the endings slides were fine, i found all the secrets i guess cause i always get this machine and every unique weapon etc, so thats all cool stuff, nobody is saying its not a good game, i want FO4 to have a lot of the good features from new vegas, like repuation system, lots of quests, good voice acting and npcs, good skill/perk system, lots of weapons etc...its just that lots of people like exploration, its not a minority group, a lot of the people who buy and play bethesada games expect exploration and good combat, those are their trademarks in their games..dungeons, builldings, caves, dynamic immersive world, these are all things in a bethesda game. nobody is bashing new vegas or obsidian, i like many of the things obsidian did with fallout. i just wish they wouldn't of neglected several important aspects,mainly exploration and maybe a more dynamic map, those two things would of made the game almost perfect for me. i think obsidian can make a dlc that fixes some of this. we'll just have to wait and see i guess.