For items they cost 5-50 points with Consumables like potions costing 5 points and other items between around 5-30 points. Sets like the villager set, holy knight and great sage cost 50 points.
Martial arts like cane art shield art and swordsmanship all cost 10 points.
skills cost 10-30 points
basically all of the skill that are still remaining cost 30 points.
magic cost 10-30 points but all of the remaining one cost 30 points.
special cost 20-50 points. They don't seem to tell you the cost of the remaining specials.
Titles cost 10 points
As you can see many of the remaining skills have high cost and it is questionable if they would be useful so it is understandable that no one wanted to use more then half of their points for items or skills with questionable use

So the MC got
Stat dice - 10 pts
Villagers set - 50pts
contact lenses 30pts
cane arts - 10pts
Health - 30pts
Walking - 30pts
Gymnastics - 30pts
Sensitive body - 30pts
Temperature magic - 30pts
magic packing - 30pts
weight magic - 30 pts
movement magic - 30pts
ho-so-ren - 20-50?pts
Dexterity poor - 20-50?pts
Kino no Bo- useless person 20-50?pts
Hikikomori - 10 pts
Nito - 10 pts.
Loner - seems to be a title he already has
So a total for everything would 420-510 points approximately 8-10 times more points then what the other classmates got
There also the fact that he lucked out big time and got two maxs from the dice so his total stats are way beyond what any of the other classmates have.
So it won't be surprising if he ends up extremely OP

For the skills and items there either doesn't seem to be a description or a short one sentence description like walking just says" to be good at walking" and both dexterity poor and kino no bo- useless persen just has "level rises slower." So for a good number it seems that you have to guess what they actually do.

The next part was kind of hard to understand but if I understand it correctly
Skills are created from the remnants of souls of people who have been recognized by god or have exceeded god. So the god doesn't fully understand what the skill do but knows that they are useful

/s