I agree with PurpleFrog, you can always wait for the next promo. On Epicgames, it is $24.99 but check steam, maybe they'll do a sale.
Doubt EGS will be giving away GTA V again for the foreseeable future. However, it really makes sense to add the game to your wishlist on Steam, because the price drop will be immediately notified by email, as Gaben is running a sale quite often.
Woah!! Didn't know, that some gamers are here 
Yup, we're here. 