Guild Halls

So, assuming that a Guild only has around 4 casual members and 0 Favor at the moment.

Will it be worth it farming 100 Gold and 150 Favor to claim a Guild Hall?

This is taking into consideration that they may or may not claim a new Hall when the next Expansion is released which would require another 100 Gold and 150 Favor.

New expac is not coming in at least 2 years and 100 gold can be farmed in like 2-3 hours per member. Is it worth it? Depends what you plan to do with your guild hall, but generally it's not supposed to be worth it, it's just another way to spend your gold/time on. However, you can always join guilds with fully upgraded GH for its benefits.

we tried claiming gh with 2 men. and we were too chicken so we took on a druid and 3 men it. not enough people, no problem.what you can do is easy bounty and trek so you can gain favor to work toward your claiming. it's only 100g for a gh claim. i agree with the others. can cost a few members a day or two and you'll work towards it rather than waiting for an eternity for the next expac since the last one is just a year ago.you could claim a new gh when they release. all is another 100g. at that point, i'd see your guild thrive so i wouldn't see any problem here. lol

Might as well, I practically solo my own guild and as stated, its only 100 gold, and you lose nothing when swapping Guild Halls aside from 100 Gold

As long as you have a fair certainty your guild wont disband, yes. If you lack Manpower, contract another guild to help you claim your hall, it's a common practice for guilds that want to remain small.