The point is to be better than a real Gameboy. Most of the original GBs don't have backlights, the original GBA in particular is INCREDIBLY hard to see unless you're sitting directly under a lamp. The speakers are usually pretty quiet. With the Gameboy Advance, if you want a frontlight/backlight you need to get an SP which I personally think is very uncomfortable for extended periods, and also doesn't have a headphone jack without a dongle (Nintendo was way ahead of Apple on that!). The GBA is backwards compatible with older Gameboy games, but the cartridges awkwardly stick out of the device an inch or 2, which make them awkward to transport around.
Plus what others have mentioned, with the fact that it'll probably get hacked very soon to enable running any game from an SD card.
I will say that FPGA emulation is cool in some ways -- the power draw is less and you can achieve lower latency without some of the CPU-intensive methods that software emulators have pursued to do it. But most of the claims made about it do not stand up to scrutiny.
Which is not to say there's no reason to own an Analog Pocket, it's a set of tradeoffs. I just personally find those trade offs make very little sense.
[0] by which I mean the game, taken as a piece of artistic expression
Compared to original hardware, the promise is that it will have a better screen, a sleep mode, let you play on TV, load ROMs from computer (if you're a developer), etc. Compared to software, the promise is the form factor.
Seems to be $120 for equivalent form-factor, but still missing a large amount of what the Pocket supports (such as physical cartridges, link cable, and TV output), and with a worse display and a smaller battery. And it's not like the Pocket is that much more expensive at $220.
https://www.eurogamer.net/articles/digitalfoundry-2021-analo...
I've ordered one today as soon as the orders opened, personally I'm incredibly excited about it - it will compliment my collection of classic gameboys really really well.