Starting a "statistics share and tell"...

I'm one of those "set target, hit target" collectors. In my case, the target is to collect a $5 chip from every Nevada casino that ever existed. Kind of a common collection goal, I'm sure. If a fiver isn't/wasn't available at a particular casino, I'll collect another denomination. I do not want to collect EVERY chip ever issued. If I'm looking for a fiver, but another denomination is available at a great price, I'll buy it or trade for it as a placeholder until a $5 is acquired, after which I'll sell/trade the placeholder, even if the placeholder has more book value than the fiver.

So, with that background in mind, here are some stats about my collection. Yes, I know it's "risky" to overshare personal information like this, but I like to live on the edge:

Casino stats:
Number of unique Nevada casinos to collect (per listings in The Chip Rack only): 1047
Number of casinos that I have "completed": 877
Number of casinos to go: 170
Number of casinos that I have placeholders for (non-$5 denoms where a $5 is available): 25
Number of casinos for which I've currently found chips suitable and available to cross off my list, but seller's price is currently too rich for my blood): 29

Chip Stats:
Number of chips (total) in my collection: 2,349 (I have several hundred that I've not documented since outside my area of interest - most of which came from winning a CCA raffle in 2019).
Number of $5 chips: 1,461
Number of $1 chips: 471
Number of $25 chips: 71
Number of ND chips: 251
Number of all other denoms: 95

Valuation:
Face value of collection (all chips): $36,776.85
Low book value of NV collection: $99,568.00 (anyone got a "V" valued chip that's on my want list to push me over the $100k mark?)
Low book value of remaining chips to collect: $182,027.73 (110 casinos have only one unique $5 chip, so I estimated book value for the other 60 using avg value of the 110 casinos, which was $115,075.00 or $1,046.14/chip)
Highest face value: $25,000
Most common book value code left to collect: * (no market - need 13 of these)
Next most common (tie at 10 each): S and Z1
Number of book value W chips to go: 9
Number of book value T and Z4 chips to go: 7 each
Book value category having the highest dollar value to be collected: 2 chips in the Z8 value code category for $42,000 (the seven Z4 chips have the next highest book value code at $14,700)

Breakdown by city:
Number of NV cities I've completed (no more casinos to collect a chip from): 31
Number of NV cities that I need 1 casino/chip from: 10 (Contact, Davis Dam, Elko, Fallon, Gardnerville, Golconda, Goldfield, Indian Springs, Jackpot, Laughlin, Mesquite, Mountain City, Mt. Charleston, Pahrump, Primm, Pyramid Lake, Searchlight, Sun Valley, Tonopah, Tule Springs)
Number of NV cities that I need 2 chips from: 11
Number of NV cities that I need 3 or more chips from: 10
Number of chips needed from Las Vegas: 63
Number of chips needed from Reno: 27
Number of chips needed from Ely: 10
Number of other cities I need chips from: 7 (Caliente, Gerlach, Sparks, Carson City, Wells, S. Lake Tahoe, Winnemucca)

What other stats do you find interesting to track in your collection? Any other stats about my collection that you'd like to know? Any stats you track that maybe I should add to my spreadsheet?

Looking forward to seeing the responses from everyone.