My personal view of the P210 is that it is overrated. First of all, it's a rather dated design, heel magazine release, hammer bite, only holds 8 rounds of 9mm. Plus although it's single action I've never been that impressed with the trigger pull, I think because it's quite short in height and you don't get as much leverage on the trigger as with some other pistols.
The current ones being made by Swiss Arms have a beavertail to correct the hammer bite problem plus a thumb mag. release, but what can you use an 8-shot 9mm pistol for, exactly? Any serious bullseye shooter is going to use a .22 or something in .32 S&W Long for example. Even the new model isn't really competitive in IPSC. There are some service pistol events they can be used for, which is what they are used for in Switzerland, but mainly you're buying an expensive toy, IMO.
Yes, they are very accurate 9mm pistols, but having done some comparison testing I'm certain they're no more accurate than the Sauer Sport pistols currently being cranked out like the X-Five. Actually there's also a comparison of the P210-5 and the SIG-Sauer P226 Sport II SL (which has a bull barrel) in the April 2002 issue of Caliber, and the P226 is more accurate with some loads than the P210-5, although I'm not sure it's a statistically significant difference. The X-Five also has a much more adjustable trigger than the P210.
Parts are easier to get for the Sauer Sport pistols too, because a lot of them are the same as in the P226. Unless you find one at a good price, have small hands or you want one for your collection, I wouldn't run out to buy one.