The Ultimate Collection was never sold commercially. Instead, it followed a unique distribution path: Re: [FAQ] The Sims 2 Ultimate Collection - Ended (July 31)
Unlike the newer "Legacy Collection," the Ultimate Collection includes the IKEA Home Stuff Pack , which was later removed from certain re-releases due to licensing. Availability and History Sims 2 - Ultimate Collection
University , Nightlife , Open for Business , Pets , Seasons , Bon Voyage , FreeTime , and Apartment Life . The Ultimate Collection was never sold commercially