Another Guild Wars question.
Would Guild Wars 1 be worth checking out at this point? Is it something you can solo?
Also, despite warnings that I won't see much end content in Guild Wars 2 without a group to play with, is the game pretty solo-able?
You can solo almost all of the content in GW1. There are a few missions which are much, much easier with other players, and there is some end game content that pretty much requires a full team of human players. The gameworld is fully instanced except for player gathering areas like outposts and cities. There are henchmen/heroes to round out your party to allow you to solo. (solo meaning only one human player, not one party member)
GW2 is more WoW-ish in that most of the game is not instanced. Only your characters personal story-line, dungeons, and certain events are instanced. You can solo most of the open world stuff and all of the story-line stuff except the end.
And despite the other posting claiming there is no power creep, there most certainly is. You can read all about it on guild wars guru or the official boards. It is pretty much the biggest turn-off (besides massive grinding) for GW1 players. Again, GW1 horizontal creep, GW2 vertical creep. WoW is an example of vertical creep.