[quote=@Darkmatter]
Yes I took the free level jump to level 25 and did the first taken king mission. This was after regularly leveling to level 10 though. So I haven't played house of wolves or dark below, missions or strikes or raids. Obviously I now feel I'm missing out on them!! 
Going back and playing them at higher level is fruitless no?
[/quote]

It depends on how you are. For me I'm a bit of a completionist so I'd end up doing it just to get done, because even now I want to do the previous raids even if I don't get anything out of it. Though the story isn't the best to begin with in Destiny, it starts getting better, especially towards House of Wolves because they start having characters talk more, which is just more fun in general.