Well, it's relative, isn't it? Seeing as they are $USD129 brand new, $USD30-40 plus shipping is cheap. And it's about the same as what you would pay for a MOMO, but you get a better all-around package.
Anyway, if money is the issue, someone has already offered you a wheel for free including shipping. My advice is TAKE THE BLOODY WHEEL! Who cares if its got no FFB? IT'S FREE! He's even offered to pay the shipping costs!
Buy S2 with the money you didn't spend on the wheel, get a feel for driving with a wheel and pedals, enjoy all the new S2 content, then decide whether it's worth saving up some more money for a FFB wheel.
You get to have your cake and eat it too, plus your drawer full of cash is only $USD47.57 lighter (based on current exchange rates).