Shops and prices.

For the sake of providing the best services I can to my customers, I am going to admit that I am horrible at the moment with knowing the value of items and what to sell them for!
I would like to offer similar or competitive prices for the items I sell at /Pwarp Clericcraft.

SO!

If anyone would like to visit my shop and offer comment or suggestion on this thread for my prices, I can get a better idea of what to sell for what price in my shop.
Here are the parameters for a reply:


Conditions under which I will lower prices:

Rarity of Item being sold: How easily can the item be obtained? If more easily gotten, where and how?

Another shop that has lower prices: What is the shop warp so I can check the prices, and what item are they selling for cheaper?

Conditions for raising my buy prices:

Without taking a huge chunk of profit from my shop, what buy prices should be raised?

What shops buy for more? What is the financial ability of the owner of said shops to buy items for more? (I.E. How much money do they have to be able to buy? I must stay within my means).

Items I am selling for too cheap:

Which of the items in my shop are under priced?
What warps are there for me to compare my price?


I will not take into consideration any posts that simply give a number. So as not to be scammed into selling quartz blocks for a meeble each, an example/place must be provided where I can compare.