1. Make entries for LiD, RS, and EOD B1F purchasable in regular shops for a fixed price.
Reason: mid game people have a hard time leveling up, and entries for these dungeons have usually become more expensive than the loot inside.
2. Bring in more fixed drops, or craftable items - like the alternate way of obtaining Merga ring is with 100% craft chance. Such fixed drops should generally be obtained either from bosses, or from quests. And when I say "drops", I mean weapons, armor pieces, or accessories.
Crafting is already dead because of the low craft chances and amount of alz required, and also pretty much everything in Cabal is a random drop, so this would be a good way for unlucky folks to acquire better items - by making hard work pay off too, and not relying everything on pure luck.
This would also make prices in Agent Shop drop to more reasonable values, otherwise most alz will keep going to high level people - who can afford 10 minute dungeon runs for drops. Unlike mid game people, who are generally poor on alz and are spending about 1 hour for an EOD B1F completion, only to discover that selling the loot won't cover the price for another entry.