If you are wondering about the odd price structure, compare the price and the 2010 impact factor (from Wikipedia):<p>Nature $36, impact factor 36.1<p>Nature Biotechnology $31, impact factor 31.1<p>Nature Cell Biology $19, impact factor 19.4<p>Nature Chemical Biology $15, impact factor 15.8<p>Nature Chemistry $17, impact factor 17.9<p>and the list goes on! at least they round down...