Quick review: while having the choice to play the Rayman 1 port you like the most is cool, there is not much reason to play anything other than the PS1 port except for the novelty of it.
Even then, the sountrack has been altered: this new one was made by the same person who did the Origins/Legends soundtrack. While I love the soundtrack of those games, Remi Gazel's original soundtrack for Rayman 1 is iconic and it's a bit insulting to both the fans that grew up with it, as well as to Gazel himself who sadly passed away a few years ago, not to be able to toggle the original version. Compare Bongo Hills' original soundtrack with the new one, it's a completely different experience - why can I toggle between five different ports, but I'm unable to experience those games the way they were originally intended?
The hyped SNES prototype is the same rom that was dumped on the internet a decade ago. Nothing new to see here.
The artbook and dev commentary is cool, although the value for those things is subjective.
Overall, I'd say it's not worth the price of admission unless you really, really want to take a look at the bonus material bundled with the games. Either play the original PS1 game on Duckstation, or the fanmade remake Rayman Redemption.








I don't necessarily agree with you on this specific point (although I agree with the rest of your comment).
Gaming is unfathomably cheap nowadays and the conversion $/hrs is incredible. While yes, day 1 prices are higher than they used to be, discounts are frequent (excluding Nintendo platforms) and games tend to last a LOT longer than they used to. Excluding old-school JRPGs, I don't remember many games from the PS1 era lasting more than 10/15 hrs. Nowadays that's the baseline length for any single player game, and it goes only higher from there.
And that does not include the plethora of F2P and live service games that people can waste literally thousands of hours into, free giveaways (I have hundreds of titles on Epic Store that could probably satisfy all my gaming needs until the day I die), etc...
The cost of gaming has gone up only if you are a Nintendo aficionado who adamantly refuses to jump to any other platform and buys all new releases day 1, or a PC master race whose eyes strain from playing games at anything less than 300 fps on the latest NVIDIA card. For any other demographic, gaming prices are fine and more approachable than ever.