Oooooo buy cute little outfits so that when you dance everyone looks at you, thinking how cute you are.
Oh wait, are you a male or female? That only works for females.
Okay, I have bought Red Eyes and Blue Miles for refining which makes me have nice shiny weapons and items so people will look at me and think how cute I am. And I have bought a cute bunny house so that when I rest everyone will notice it and think how cute. Oh and I bought the Easter Outfit with the cute chick on my shoulder so everyone will look at it and think how cute it is on me. And I bought the permanent bag so that I can keep all my cute things with me so I can change clothes and pets whenever I want someone to think I am cute.
:P Okay now to get serious. I bought the Reds and Blues because they do make refining so less frustrating and I dont have to spend silver on more equipment and weapons. And the house I bought because it recovers my hp/sp so much faster than the regular house. The Easter outfits pet was +7 on all stats which is way cool and there is a critical bonus with the outfit. As far as the permanent inventory case, not having to run back and forth to town to put things in storage or to sell things to give me inventory room has made my killing sprees longer and more productive.