I have a pretty massive plastic miniatures collection, so... no. I wouldn't be interested. If they were included in WotC products, I'd either ignore them or throw them away. The latter might seem like an extreme response, but I find that sort of thing annoying. In the 3e days, about a dozen issues of Dungeon magazine came with cardboard sheets with monster tokens you could cut out. I'm never going to use these, and the cardboard sheet protrudes from the magazine if you slip it inside the pages (which means it gets dog-eared, and may ruin the actual magazine). Similarly, in 4e Essentials, there were a few releases that came with sheets of thick cardboard "pogs" that you could punch out. Even more annoying! Individually, you can ignore them... unless you get all the books/supplements, and you suddenly have an inch-thick stack of unpunched cardboard that you'll never use.
Plus, I have an extensive collection of good-looking 3d scenery. I went deep in both the Dwarven Forge kickstarters, lots of Warhammer and Battlefront scenery, etc. I'm big on the visual aspects of tabletop roleplaying. There are so many CRPGs out there. I like my games to bring something to the table that no CRPG can emulate. So, I either want a tactile 3d scene that blows away my players (has them reaching for their cellphones to take photos of the triple-masted wooden schooner in 28mm scale, resting on a painted water surface next to a wooden dock with a half-dozen Warhammer buildings filling the waterfront)... or I'd want to do Theater of the Mind (the imagination is the most powerful graphics card in existence!). The halfway point (paper figures or circular pogs) just isn't satisfying for me.