As the company expanded product categories beyond collectibles into almost any saleable item, business grew quickly.[7] In 2000, eBay had 12 million registered users and a cyberinventory of more than 4.5 million items on sale on any given day.[23] In 2001, eBay had the largest userbase of any e-commerce site.[3] In February 2002 the company purchased iBazar, a similar European auction web site founded in 1998,[24] and then bought PayPal on October 3, 2002.[25]