What Collecting Area Would You Never Pursue Due To Lack Of Interest?

Errors & varieties. Just can't get into that stuff at all.
Most modern NCLT/commems.
Ancients
Modern base metal world coinage (the lone exception being British post-silver £sd coinage of George VI and Elizabeth II)

I check my cents for WAM but I just can't look for errors that require a microscope to see. I have one WAM in my collection; the rest get sold as I find them.

I can't get started on any series (Morgans, Peace, Meiji dragon series denominations) that I know contain coins so rare that I can never own one.

Most modern world coins are B*O*R*I*N*G.

I have learned to cope with coins in Cyrillic, Chinese, Japanese, etc, but I just can't get into Arabic coins.

All the NIFC junk out there.

I don't care much about modern coins, especially post 1964 (or post 1958 for cents). Having examples as part of my Type set is as far as I go. I can appreciate Morgans but don't have any real interest in collecting them. Maybe because it has such a crowded field of collectors and I can't get into the whole VAM thing. I don't have a lot of interest in foreign coins either (not counting ancients), thought it is possible I could become interested in another country or two eventually. There are too many coins in the world to try to be knowledgeable about all of them.

I don't usually pursue certain series of anything. I'm the type of person who finds something, if I like it or don't already posses one like it, I keep it.

As far as things I wouldn't collect, call me crazy, but I can't stand uncirculated/extremely shiny coins. I like having things I can touch, that have signs of age and use. It shows that it has a history.

Of course, when it cones to coins, I'm usually more of a 'nonnumismatic' in that I collect for interest, not value, so everyone else hates it and I think it's cool, I'm keeping it.

My interests are pretty diverse, and really it is impossible to say that I would NEVER be interested in something, but varieties/ errors that need optical equipment to tell one from the other, or tell that they exist, do not currently interest me.

This.
I have no problem with getting a big part of a set from one bargain bin (it would've had to be a really low end bin to buy German pfennigs from it, admittedly), but it's very hard for any set to hold interest to me long enough to assemble it slowly for different places.

Very nice description - I essentially agree to this (in both parts).

There was a time when I thought some coins were not interesting enough
to collect . I don't think that now ... I like all areas of collecting.

For example ... When the SBA came out ... It was not popular. I never
thought I wanted to collect them ... Until I put a set together ...
Now I have two sets of SBA's.

I hear many people say they don't like modern coins. I would suggest
checking out a higher grade set ... maybe Ike dollars or P,D,S,S State
or Park quarters. When you have a album full of higher grade coins,
it might change your mind.

I can understand about Peace dollars. I really wish that better strikes
were more common. I don't currently have a Dansco for Peace dollars,
but there is a good chance I have a full set .. Or near full set in in slabs
And 2X2's.