Total Cost of Ownership for iPhone 3GS in Ireland

I’m a geek. As a result, I think I got this right, but I may be off on my maths. Consider the sweet spot, which I reckon is the €65 with unlimited texts. Tariff 8GB TCC 16GB TCC 32GB TCC Fee Fee Fee Silver 45 €99 €909 €199 €1,009 €299 €1,109 Gold 65 €49 €1,219...