The best ferry to Morocco

[UKTomo]

Hi all. I am planning on leaving for Morocco on the 12th and looking at available crossings.

It seems the main options are Tarifa - Tangier, Algeciras - Tangier or Algeciras - Cueta

Now the two main companies I have come across are

Transmediterania and FRS

Both seem to me to be quite expensive. At around 140Eur return.

Is this about the best price we are likely to get or would it be a better idea just to turn up at the port of either Tarifa / Algeciras and book on the spot.

Any ideas appreciated or experience of what people have done in the past.

Thanks