Well, the repair costs got fixed.
You used to pay up to 5k+ for repairs, right now it's around 1-2k depending on how "used" it is.
Gil ain't really hard to come by, seriously.

Farming CM for phylo points and then selling the crafting items for 35-40k gold makes you some easy gil.
Also getting a crafting class or a gathering one to 50 is very beneficial for some extra gil aswell.

Use teleport only when there is a LONG distance to be covered, otherwise you might aswell just mount and travel your way to your desired destination.
Before I hit 50 I used to teleport all the time, it ain't THAT crazy expensive.