Better the Second Time Around?

Recently it seems the trends for RPG's is stuffing so much unlockable content and freedom into them you have to play through more than once to fully experience it all. Recent examples include Resident Evil 4&5, Mass Effect and Fallout 3. While I do enjoy the sandbox style when applied to video RPG's as they make the games feel a bit more like "traditional" role-playing games, having to sit through the typical boring opening scenes negate any enjoyment I may get. I've played through both Mass Effect and Fallout 3 on the 360 and at the end of each I was ready to start over with a different character, wanting to go through the trials and tribulations of the respective stories with a new set of morals and abilities. After whipping up a new character I got started, excited and eager only to quickly become bored with having to go through the tedious prologues. Once I've gotten through to the meat of a game I have a hard time starting over.

There needs to be an option to start a second rub at around level 5-10, just far enough along to begin taking advantage of different abilities and branching out with decisions without having to go through all the parts I just mentioned. I don't know, maybe it's just the fact that I've got the attention span of a fruit fly but I just can't get into games after I start the second run.