I see it. You'd need a bump map to simulate that.
Sorry kid, but that's life. There are damn few cases where you'll be able to get anywhere close to realistic without bump mapping. Every surface has some texture or other- in fact, even perfectly smooth ones do, if you care to look that close (for modeling, this is unnecessary- that's what decreasing the specular value's for).
This argument is beyond stupid, anyway. When and if you try rendering on your own, you'll eventually find that I'm right. Or not- who knows? In either rate, if you want a fight, you'll have to look elsewhere. Like an IM channel or warez kiddie forum- I'm not the hormonally-imbalanced type, and neither are most here.