For your happiness, here's an amusing rumour - FF 30th anniversary next year, supposedly I - IX are all gonna be available on a cart:
I REAAALLY HOPE THIS IS TRUE!! I just can't lay down my FFX HD copy and i've missed out on a lot of FF titles.
Do you think all games would fit in a single cart though ? It seems not.. But anyways hope this will make it here as I was on the verge of starting an FF purchase fever.