If you're between TFTC and FT, get the FT. TFTC is great, but Fish Tales is one of the best in my opinion. I've owned both, but I've sold my TFTC and FT will never leave my basement. Even amongst all of the others you mentioned, I'd still take FT. That being said, if you're really looking for depth above all, FT won't do that for you. It's just plain fun and will be played many more times than the others. If you're only looking for depth, RBION or Shadow would be your choices.
Regardless, you should be able to find a nicer FT at your price range. Get that and don't look back.