There was a time where Sonic the Hedgehog and Sega was more popular than Super Mario. Obviously it didn't last and many older gamers now consider Sega to be little more than an empty shell of it's former self. However, that doesn't change the fact that at one time the company had some truly amazing titles.
"Sonic's Ultimate Genesis Collection" is the most comprehensive Sega compilation that any gamer could hope for. But nearly fifteen years after their first appearance, is a new coat of paint enough throw down the $30?
Short answer: Yes.