SSX 3 has been $9.99 on the Xbox marketplace since it became backward compatible, but it has received a price markdown to $3.29 for Xbox Live Gold members, or $4.29 without a Xbox Live Gold membership. I have been looking at this game for a while and just noticed the price cut. I don't know how long it will be discounted, but it is possible the price will jump back up. This game plays so well through backward compatibility on Xbox One or Xbox One X, and the visual enhancements are quite nice. Check out Digital Foundry's video of it on YouTube and you'll see for yourself.
* Most of the original Xbox games are $9.99 with the exception of a couple of them being $14.99 or even $19.99 (i.e. Full Spectrum Warrior & Destroy All Humans!). Full Spectrum Warrior went on sale for $2.24 for Xbox Live Gold members in November but is back to $14.99.
** Hunter: The Reckoning, also normally $14.99 is on sale for Xbox Live Gold members for $10.49, but you can probably find a physical copy for cheaper.