Colorized Coins ...like Them Or Hate Them

I find that the colourised coins which only have a little colour on them, I like. But the coins which are full colour on one side I find way to colourful to be a good coin in my personal collection.

I only have one colorized NCLT coin:
Cameo proof silver plated crown size Cook Islands 2009 one Dollar,
showing "Wonders of Nature - Grand Canyon"
It is a beautiful coin.

I bought it from a dealer's junk box at a coin show, for $2.
That, in my opinion, is all that it is worth. , so I broke even.
The gimmik effect fails for me - value perhaps as an art object - but negligible numismatic value.

A safe bet that the original buyer paid more that $2.
Therefore, a failure in the numismatic aftermarket.

Out of your 9 points (number 10 is too generic), 2, 3, 4 and 9 are popular to collect (I have a few of every "gimmick" in that list except very large - my largest coin is only a Catherine II 5 kopek, less than two ounces).
Are there any non-expensive examples of incuse designs (your point 1)? I'm thinking of 1960s Swedish ore, in particular, but I'm not sure how incuse it needs to be to count. (If the 1960s Swedish coins count, I also have a few.)
Points 5, 7, and 8 are by necessity expensive. No, I don't have any (though Byzantine scyphates would probably count for 7, and are cheap enough that I could easily afford one; I'd like an example of 5 too, but it's orders of magnitude above my budget).

That leaves the one point the thread is all about - colorized coins.
I do not believe I actually have any "with a sticker on it" colorized coins like the OP. If I ever found one, I would have probably tried to give it away to somebody.
I do, however, have - or so my memory says, it's been several years, and I can't recall seeing it lately - at least one properly colorized coin; as far as I can figure out from cross-checking pictures and memory, it probably was a Canadian 2010 double poppy quarter.
Even my mother - who does not collect coins - agreed it was pretty.

In general, I hate, hate, HATE colorized coins since they just look cheap and tacky to my eyes, regardless of whether they are made by a mint or done aftermarket.

Having said that, I will admit that I have a fondness for selectively plated silver coins (e.g., with gold accents). To each his own, eh?

I tend to agree with that because it follows the line which separates the "good" stuff from post mint damage.

GR58 is right - if you can get them at or near face value, then it makes sense. Otherwise, they always remind me of "collector plates" or can't-miss Franklin Mint stuff that has cost people untold sums of money.

I would not pay more than face and I would not cringe if I got one in a roll or change.

Worse case, acetone can correct most bad paint jobs.

I'm generally not a fan of enameled coins since I feel it detracts from the original design and beauty, and silver/gold plated coins are usually overpriced in my opinion.