New to MMO and GW2

Hi all,

I played Throne of Liberty a bit and really like the idea of a MMO - I'm now keen to get into GW2 - never played it before, is it too late to start and will I be able to join the whole game and story as a solo player?

I live in Australia so I assume most Aussies play on NA servers and most guilds are all but lost - not sure how big the GW2 community is.

Will I miss out on anything if I get the expansions at a later date?