The More Participants, the Greater the Honor of Gd - BeRov Am Hadrat Melech
The desire to have more participants, vs. the importance of performing Mitzvot as early as possible: Rosh HaShanah 32b
Regarding the Number of Kohanim partcipating in the Service of the Pesach Offering: Pesachim 64b
Regarding the number of people involved in Harvesting the Omer's Flour-Offering: Menachot 63b-64a
Regarding the number of people watching Temple Services: Yuma 70a
Regarding the number of participants in Preparing the Temple's Menorah: Succah 52b
Regarding the number of people who are partners/attendees in a Synagogue: Megillah 27b
Whether one is required to spend money for a Mitzvah: Kiddushin 32a
Considering additional items, added for beauty, to be separate and not part of the Mitzvah: Succah 37a
Beautifying Temple offerings: Menachot 69a
Not using an item in the Temple if one wouldn't present it to a local ruler ["Hakrivehu Na LeFechatecha"]: Succah 50a; Sotah 14b
In Circumcision: Shabbat 133b
In the Pesach Offering: Shabbat 133b
In building a Hut for Succot: Shabbat 133b; Succah 28b
In picking the 4 Species for Raising on Succos: Shabbat 133b
In binding together the Palm Branch with the Other Species on Succot: Succah 11b, 31a, 33a
In picking a Ram's Horn for Rosh HaShanah: Shabbat 133b
In picking Tzitzit-Fringes: Shabbat 133b
In writing a beautiful Torah Scroll: Shabbat 133b
Expenditure for a Mitzvah
One ought to increase up to 1/3 of the value of a lesser item, in order to purchase a finer item for a Mitzvah: Bava Kamma 9a-b
Calculation of 1/3 as Inclusive or Exclusive of the actual 1/3: Bava Kamma 9b
The Added 1/3 is Rewarded after Death, but additions over 1/3 are paid back in this World: Bava Kamma 9b
Gd had mercy on the Jews' property, limiting what they had to spend for a specific Mitzvah: Rosh HaShanah 27a; Yum 39a, 44b
Greater expenditure shows love of the Mitzvah: Succah 41b
Showing love of the Mitzvah
Bringing the Circumcision Knife in a visible fashion: Shabbat 130a
The Mitzvot which were accepted with joy are the ones which stay, like Circumcision: Shabbat 130a
The Mitzvot which were reluctantly accepted are the one which people still have trouble with, like Adulterous Relationships: Shabbat 130a
Drinking wine associated with a special blessing in large gulps: R. Succah 49b "Migamaya"