Luckily for me and my group of friends, we never did venture into the market when it was playing at the 20K+ levels, our investments were made at much lower levels. Of course, we've seen our profits vanish, but it's nothing compared to the thousands who were seduced by the media to begin investing, misled into thinking that the market could only go up and up and are now left without the shirt on their backs. It's happened before in 92, 95, 2000 and will happen again in the future.
One silver lining is that many stocks are so far off their highs that they make very sensible investment decisions. Take IT for instance, you've now got Infosys and TCS available for 15-16x FY08 earnings and 12-13 times FY09 earnings. These are extremely profitable companies generating 1000s of crores of cash each year and yet the market is totally ignoring them. I think it is a very smart decision to buy into them right now. I would, if only I hadn't fallen for the hype and put so much money into the Reliance Power IPO:-(