Each table represents a different shop in this area, which explains the overlap in some of the spells.
You’ll probably be grinding for a while for some of these new spells (this is the final time you’ll get new spells at a shop). Quake hits all enemies with Earth-based damage; it gets useful versus multiple enemies because of the lack of a power split. Aeroga has a power of 200 but it will divide its power between enemies unlike Quake.
Breakga is an instant Petrification, but very inaccurate, so not really worth your Gil.
Drain provides an effect like that of the Blood Sword: it damages an enemy and heals the user somewhat. It is single-target and very powerful. It might be worth going for if it works with your strategy.
Curaja is the most powerful restorative spell out there, so it is definitely a must to own.
Esuna cures all negative statuses except KO. You should be easily able to buy all of the items for those. About 50 Antidotes, Gold Needles, Echo Herbs, and Eye Drops will sum that up. Items are also usable by all, unlike the Level 7 White Magic Esuna. So pass on Esuna.
Reflect will toss spells back at the caster. This can be useful because it is possible to bring it on an enemy to stop healing, and it can protect you from magic while also damaging the enemy. It’s situational but when you need it, you really need it, and it proves its worth.