*****UPDATE*****
NEVERMIND THE PATCH NERFS THE MYTHOCLAST!!!!
I believe Raid Gear should be made available to buy via DLC. A full set of Kabr Titan Armor and a Vex Mythoclast. I'd pay $50-$75 for that DLC pack. It would be a great way for Bungie to increase revenue and also give players who have bedtimes (i.e. Jobs, wives, kids, etc) an opportunity to enjoy some high level its without creating three toons and raiding 3-6 times a week to get all the loot drop chances.
This wouldn't be an unfair advantage because all the items that are for sale in game can be legitimately gained for free. So it wouldn't be pay to win. I can understand why some players would be against this but look at a game like Warframe. They have paid items that are all available through regular play. This would be another method of obtaining endgame gear without "ruining game balance".
Even set a qualifier like "must complete VoG at least once" or "Must have level 29 character to unlock" something like that to weed out day 1 buyers who grind to level 26 in a day.
I would hand over phat stacks of cash in order to use high-level items without having to neglect everything in my life. Just a thought to consider.
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I will be a little more posditive. I understand you thinking and reasoning behind this. Even if this was available to buy I have the pride to earn it. With that said keep in mind this is not your average run of the mill fps or rpg. It would be like a boss saying if you take no days of you get a $5000 bonus. Then a large group of employees get sick and can't get it. Then when he is handing out the bonuses he gives them to everyone and says oh well you all deserve them. The employees that came in sick and sacrificed personal time did this for nothing. unfair is an understatement. That's why this idea would not work. Do many players that can put the time in and are in this game for the long haul would be jaded and on principal alone would leave the game forever. Trust me I know gamers better than most. The only way I could see doing this would be slightly down grading the raid gears attributes making it less superior but that's already in place with the legendary vs raid gear. Sorry bro good thought though.