First off dox360, exotics don't turn into anything but exotics. Even legendaries that turn into motes of light would give u at least 2-3. Yah the odds of legend aires turning out low are pretty shitty, but I don't see how you have a hard time lvling your faction.
If your doing it right u shouldn't be gaining vanguard or crucible ranking. And it's pretty easy to get legend arises through the factions. Kid every lvl 3 and up from your faction gives u a guarant...
If your such a vagina that you can't play a game without shooting at the same spot for hours like duck hunt you shouldn't be playing Destiny. You can grind out enough reputation in less than a week to be able to BUY the perfect armor that gets you to 28. So if your only way to get to 24 is the play the loot cave, then your a moron. The only thing the loot cave was decent for was raising your cryptarch lvl. stop playing the game so we don't have to see al these cry baby articles ...
Seriously? This guy rather stand in front of a cave all day shooting the same stuff rather than play on crucible or do strikes? If you want loot go and join a faction. Cave was cool but who cares if it gets patched, it was obviously going to happen. What a little baby complaining that Bungie patched something so obvious.
If your 27 you should either join a clan or find a solid group to help you with nightfall missions and the raid. And pray your blues turn into strange coins. By now you should be able to afford exotics from xur. They make the armors really cheap to make them accessible.