If our perspective is that or stewardship (of looking after something that isn't ours) how do we go about spending our money?
If delayed gratification isn't something you regularly practice, if money burns a whole in you pocket, then I would recommend looking at the Bible.
Deuteronomy 10:14 says : "To the LORD your God belong the heavens, even the highest heavens, the earth and everything in it."
Nehemiah 9:6 says: "You alone are the LORD. You made the heavens, even the highest heavens, and all their starry host, the earth and all that is on it, the seas and all that is in them. You give life to everything, and the multitudes of heaven worship you."
There is none of take care of your money, it is everything is the Lord's. Boy have I been a terrible steward in years past. Spending money in a selfish style. I can even say the same thing with my time. Everything is the Lord's. I am so grateful I have included him in the discussion of buying things. Now I still look at Consumer Reports to buy the most reliable at the most affordable price, but now I wait, I wait because the Lord may provide the item in a different way.
Heavenly Father, one day all this will be taken away, I will leave this earth and return to you. May I continue to store treasures in Heaven, may I follow you all the days of my life. Amen.
