Humble Bundle offers downloads of its Humble Sonic the Hedgehog Bundle for Windows for whatever you want to pay. If you opt to pay the bare minimum of $1, you'll get Sonic the Hedgehog 4: Episode 1, Sonic Adventure DX, Sonic CD, Sonic & SEGA All-Stars Racing, Sonic Adventure 2, and Sonic Adventure 2 Battle DLC. That's $45 under the lowest price we could find for these games purchased separately elsewhere.
If you pay more than the average, currently $7.15, you'll also get Sonic & All-Stars Racing Transformed Collection, Sonic Lost World, Sonic Generations Collection, and Sonic the Hedgehog 4: Episode 2. Finally, pay $15 or more to also net Sonic Mania and Sonic Forces. Your contribution can be donated to charity, the developers, or both. Deal ends January 1.
There are many ways to get cheap and even free services and goods after reaching a certain age.