Lots of factors here... family, kids, career, job, hobbies, etc.The quality of the answers reflect the quality of the question.  

Then you adjust your expectations up or down depending on the quality of your list, targeting, message, and type of mailer. 

Also make sure you have a high expense ratio, even though it was gut renovated you do not know the quality of the workmanship and materials that were used, and in 3 years people can beat alot of stuff up.

Also speeds up goal of Real Estate full time-ability.  

So you're adding quality to the subject, adding value.

 “The bitterness of poor quality remains long after the sweetness of low price is forgotten” – Benjamin Franklin

Learn your market on price and quality of area. 

One,if they have similar properties in the area that may help. the quality of the property is also a factor.

Quality of life becomes more important and creating amazing memories that give you long term happiness and fulfillment.If you need to make quicker money and keep costs low you might think of going to work full time sitting a subdivision.

It is my understanding that a basic yellow letter stating that I am interested in buying the house gets a higher rate of return on responses but often times is lower quality lead where as a mailer that has more information regarding exactly what we do for people in distressed situations might get less responses but will be a higher quality lead since they know what we have to offer and that we have a general understanding of their situation and still respond anyway.