Is it okay to talk about something positive in your life, or is it flaunting?

For example, many times when people talk about their good grades, they are accused of flaunting, but talking about bad grades is perfectly acceptable. People can talk about not having enough money, but talking about that vacation to Mexico you have planned is no-no territory. I for one think that there is nothing wrong with talking about positive and fortunate things in your life. There is a difference between simply talking about it and comparing yourself to others and making sure that people know you are fortunate. That would be flaunting, bragging, being arrogant, etc. It seems to me that only insecure people will be bothered by hearing other peoples’ positive situations and stories.

Also, sometimes I get a little tired of hearing about negativity all the time and want to hear something positive.

Flaunting: to parade about, wave conspicuously in the air.

Having a conversation about the matter and talking about your situations in a respectful tone is NOT flaunting. IMNSHO. What do you think?