Do the maths !
Depending on your provider and your usage patterns, PAYG may be cheaper than SIM-only - especially for low usage.
I'm very light on data usage, and I don't use enough minutes per month to make even the low-end SIM-only contracts worth my while. I rarely spend more than £2 or £3 in a month on 3's 3-2-1 tariff.
Biting the hand that feeds IT
