>
I'll hit you up now because they already exist >

Can you point me to a product printed like this? And do you know the XYZ micron lengths? Genuinely curious. >

Well
You can get really nice ones
.....If you spend thousands upon thousands of dollars >

If all depends on the machine and material used. Most affordable ones do what you don't like, but the more expensive ones are smooth >

A 3d print you have probably experienced was mainly made for educational use or prototyping. With a 3d printer, a student in an engineering design class can design a part and actually see it which is valuable even if the print doesn’t look amazing. This is not the full capability of the technology though. 
3D printers also come in resin forms which aren’t layered and therefore have no lines. They have many affordable resin printers, but schools sometimes don’t like the messy process. In order to make a high resolution toy or something, 3d printers can be used as a tool to make molds. More expensive 3d printers are also going to be higher resolution, and some can print special materials or metal. >

I don't have a very high opinion of 3d printing, but...
You can get nice smooth prints, it' s takes pretty expensive machines, or time consuming refining processes. 
The stuff that looks like low resolution garbage is low resolution garbage. But if that's what you're expecting 3d prints to look like, then you probably don't know when something is 3d printed when it doesn't look like that. >

But this is it exactly, why wouldn't that be advertised? If one could 3D print something that looked and felt exactly like a vinyl toy, for example, wouldn't that be something cool you could highlight when selling? Maybe you're right and I'm just missing it >

Mans upset over an unfinished item looking unfinished. >

Saw products like I describe in Florence just this past week in a museum shop. It isn't unfinished, it's like selling a prototype or something. And I've seen it here in Chicago, too. Not upset, annoyed >

It's cheap merchandise by people who don't finish the work. There's a whole sanding and painting process that has to be done for them to look good. But to make these prints, the cost vs return is high, for the prints alone. I used a printer that literally told you the estimated price of the materials used, my print was pennies. This helps the seller to knock out a bunch of things and make a good profit. >

Look up products made by actual metal 3D printers, that technology is really taking off now and the products are so good they are being used in rocket technology. >

as many in the comments have already said: Those already exist, and are used in industrial and medical applications, so artists really arent usin em