Or if you really want the feeling of playing those original CARTS on new hardware funny playing sells a GBC fpga board, shell and buttons for about $100. You just can't play GBA.
If your concern is “value for dollar” you wouldn’t be buying an FPGA console in a limited edition material. Seems like a weird comparison. You can also get an R36S for like, $30 on AliExpress that will play everything from N64/PS1 and earlier.
A standard Analogue Pocket is much cheaper, this is just an option for those that really want a metal shell. Also, a metal “unfolded” shell for a GBA SP (which is I’m sure is what inspired this offering) is like $150 so it’s not even that crazy a markup.