Originally Posted by
ro9ue
You already get a Mythic mount, achievements, unique xmogs, etc.
If people still aren't incentivized to do it, chances are it's frankly just not fun for a lot of players.
A huge portion of the difficulty of raiding is being able to schedule the time and maintain a roster so you can progress at a fast enough pace to not lose people.
Fact of the matter is, I've been saying it for years and I think Blizzard is catching on... small group content is far more enjoyable and reasonable to participate in on hectic and varying schedules. Get 4 other players together for some challenge modes/D3 G-rift/whatever they are calling it in one night... and complete the whole dungeon in one night = perfect.
Trying to progress on bosses for weeks and weeks and months is just way too much to ask for most people who schedule their gaming time around their lives and not the other way around.