Merchant

The Merchant is an NPC vendor that will spawn once the following criteria have been met: Destroying the Merchant's home will not cause him to leave, though it will leave him vulnerable to enemies.
 * There is an empty house.
 * A player acquires 50 Silver Coins.

Once the Merchant has moved into a house, he will sell the following:

Note: As with all NPCs, right-clicking an item will allow multiple purchases rather than purchasing it one by one. Also, as of the 1.0.5 update, the merchant will now sell throwing knives on blood moons only.

Quotes
Note: The Merchant has quotes that change depending upon the time of day, and has a couple for each time period.
 * "Sword beats paper, get one today."
 * "The sun is high, but my prices are not." (Only afternoon)
 * "Boy, that sun is hot! I do have some perfectly ventilated armor." (Only afternoon)
 * "Did you say gold? I'll take that off of ya'."
 * "I wonder if the moon is made of cheese... huh, what? Oh yes, buy something!" (Only at night)
 * "I hear there's a secret treasure... oh never mind."
 * "Angel statue you say? I'm sorry, I'm not a junk dealer."
 * "Lovely morning, wouldn't you say? Was there something you needed?" (Only in the morning)
 * "Ah, they will tell tales of [Name] some day... good ones I'm sure." (Only in the evening)
 * "Night be upon us soon, friend. Make your choices while you can." (Only in the evening)
 * "Have you seen Chith...Shith.. Chat... The big eye?"(Only during bloodmoon)