Sega Dreamcast was the first 128-Bit console in the year 1998 and it was the first console that came with internet connectivity out of the box. It was a huge success over Sega Saturn in USA and Europe after financially bad years but the sales in Japan were too low that Sega had to quit manufacturing of the console in the year 2000. And this was the last console ever that Sega would produce.
In Europe and USA, gamers enjoyed great games by Sega and also quality titles from 3rd party software developers. Still, most hardcore gamers define Dreamcast as the best console produced ever. For the rarest games, we are not so lucky as we were with quality titles and Dreamcast has very few rare games as PAL and NTSC.