I have non-tinted European Osram Silverstar +50 bulbs now, but I'd like to try some of the newer +80, or +100 bulbs from Philips. Most of the threads I've come across on Google tell you to buy Philips Xtreme Power from www.powerbulbs.com (in England). It seems they now sell only Xtreme Vision +100 bulbs, or at least that's what's in stock, and I don't know if these will only last a few months.

There's someone on Ebay selling American packaged +80 Philips Xtreme Power bulbs for really cheap ($20/pair shipped). Are these as good as the European bulbs that powerbulbs used to sell? Or, should I just order the XV +100 from England? One more question...should I just skip them altogether and use the 3 new pairs of Osram Silverstars I have? Thanks for the help!