I would say yes.
check out http:\\\\nwnlist.com
I see 997 players on 180 servers via my app. ( NWN2 has by contrast 310 on 84 servers )
BOW is at
http://www.bastionsofwar.com/ - don't see anyone on it at present, might be rebooting though, the server is still there.
Gamespy is down ( permamently), so what is listed is limited, there are likely a many more NWN1 servers which are not on that website yet, while the NWN2 number is likely pretty accurate. That website is a community built method of sidestepping the problem.
Yes it is worth it, get the complete of both if you can
'>. -- even if you don't like it, it's bargain prices on GOG.com and there are many amazing things each community is doing. ( I really think its less about the game, and more about what the PW Builders come up with which the devs never even thought possible. ) I am actually wanting to get the full combo on DVD which atari was selling which has both 1 and 2 together, both fully updated.