Out of these two, which one should I get with $100? ExtCommands($30) and ExtCommands+($70) or Investigator($100)? ExtCommands+ will let me do enchanted repairs to make money quicker. I don't usually use tools often, so it wouldn't be extremely useful to me personally, but it's a easy way to make money. Investigator will let me /vanish and do LogBlock investigations. I am mostly considering it for /vanish because LogBlock investigations are rarely needed. I will probably just use /vanish for fun...not really much of a practical use here. Vote please.
If you as you say, don't use tools that often, I guess investigator will be more useful. However, ext commands is still the better choice, as it has more uses overall. I suggest EXTCOMMANDS.
ExtCommands+ if you do not intend to use the logblock that much. I don't know how often I wish I could repair enchanted items, but I rarely find a time I wish I could /vanish. That's just me though...
you won't regret it. I see so many requests in trade for an e-repair, and I've made a lot just answering a small part of those.