Should have phrased that better, I like the old models, but the new stuff (meaning 40k in general) is meh.
Now, part of my fondness for older models is probably nostalgia for the good old days of 2nd ed*, and that they aren't easy to get anymore.
But I do think (some of them) hold up today, and are better than (some) modern stuff, at least in certain ways. They have lots of technically better models, with lots more plastic options allowing for conversions in a way the old one or two piece metal models really made hard.
But there's some problems. For example, the new Necromunda Escher are just awful compared to the old metal ones. You do have more options when putting them together, but the are wearing high heels and are doing stupid ballerina tip toe poses that means the models just don't attach to the base the way the old slotta base metal ones did. Also, IMHO, the old ones looked more like people you'd expect to see in a gunfight (albeit at a weird punk rock concert), no stupid high heels or whatever.
OTOH, really like the new Orlock, and with not too much work the bits are compatible with Cadian bits, so I've got most of a IG platoon of them. More or that, please. That's not true of a lot of the new plastics, they don't have seperate arms and torsos the way they used to. The Tempestus Scions do, but at an angle meaning you can't do arm swaps with more or less any human figures easily if you want them to hold a weapon with both hands.
Mainly, though...it's like how the new Star Wars has more advanced special effects that it uses in worse ways than the original, the old models (often) did a job job with the technology they had, the new ones don't seem to have the same artfulness behind them. And stuff like the Primaris Marines look cool, except they are in a game where the look of marines has been established for ages and they aren't that. Star Trek had the same problem, I believe.
* Having tried playing a small game of 2nd ed vs myself not long ago, yeah, there were some issues I'd forgotten because I'd been more used to the way they worked in Necromunda scale battles. Having a squad with 5 different types of guns firing is a pain, and the close combat rules don't specify what happens to members of a squad that's in combat but who aren't in base to base with anyone during their turn.