my 2¢, from owning a few demeyere pans, and used several from different series: industry 5, multiline, proline, etc; no big deal! the difference between these demeyere lines will of course not make or break your cooking results.
personally, for a +28cm skillet, i mostly prefer the lighter of the alternatives, and i rarely use the large skillet with the helper handle.
i like the demeyere stuff a lot, but from industry 5 and above your technique is more of a concern than mass or heat retention, etc.
but yes, your heat source kind of dictates a lot. and a crappy induction range will probably benefit from 'better' pans.
i'm just a home cook, but with friends who cooks for a living, and i grew up with a great chef and around a kitchen. as an adult getting into cooking gear and after spending too much time and money on it, i took a step back and asked myself, what gear are the chefs and cooks that i know and/or admire using to get their results? nowadays, my most used pan is a stainless 26cm sauteuse, 3-ply, costs 50€ at the restaurant supply store. i don't use it because my technique is good (it isn't), but because the pan is as good as anything!
demeyere's silvinox surface is dope though.
.