I had noticed several days ago that this thread's title was good for a laugh, as 10MP is no longer at the forefront of technology. I have had my first 7D, with 18 MP, over two years, and the 7D was actually introduced in 2009. Probably, this thread does jot need to be pdated, so much as to have its "sticky" status removed, so that it graduallly moves down the page.
It is not that 10 MP cameras are worthless. The family's XTi (400D), with which I stated DSLR photography, and my 40D, both 10 MP, are still quite useful.
Canon 7D2/7D/5D/40D/1D2N/M3; Nikon F6/D700/FM3A/1Dx/Coolpix A; Canon 40mm 2.8 STM, 135L, 50L, 35L, 50mm 1.8 I, 100mm 2.8L Macro, 10-22mm EF-S, 400mm 5.6L, 16-35mm 2.8L II; Nikkor 50mm 1.2 AI-S, 50mm 1.4G, 50mm 1.8D, 16mm 2.8D Fisheye, 180mm 2.8D, 100-300mm 5.6 AI-S, 45mm 2.8 AI-P, 14-24mm 2.8G, 24-70mm 2.8G, Micro-Nikkor 60/2.8G; Voigtlander 90mm f/3.5 SL II, Zeiss ZF.2 2/135 APO