I truly don't want raids exclusive just for showing off. You can't even do that nowadays because of transmogs.
Who is going to inspect you to watch a number (itemlvl)? No one cares about numbers.
I just want that feeling of adventure and the feeling of having something above me, never seen, waiting to be done. The oldschool journey is what made raiding so special.
They could make raids exclusive and not making the requirement of "you must complete the previous raid to enter the new one".
Everyone could enter the raid just not kill the last boss if you don't have the skill/coordination.
This way you can see all raids, farm gear and still have that feeling of adventure.