of course, this could be seen as an opportunity for other manufacturers to create a new selling point for their products. for instance, imagine seeing this in the product advertising:
Unlike some of the others, the Siglent model SDS-[newscope] now comes with GUARANTEED free lifetime firmware upgrades and manual availability from the Siglent website. Just enter the (serial) model number of your Siglent product and gain instant access to free updated firmware, manuals, and unique special offers. No signup required. Siglent, we keep you safe and up to date, GUARANTEED
if this was run as part of an advertising campaign i'd imagine the likes of HP/R&S/etc would be a little taken aback. Siglent et al could even do something like what Fluke did when they released their 70 series multimeters, showing a field of beat-up and burnt out multimeters from the other manufacturers, with a pristine and fully working Fluke 77 pictured in the front of them.
cheers,
rob :-)
edit: for those who are uncomfortable with the idea of entering a serial number, changed to model number. the intention was just to lead the user quickly to the right set of files.