It's not just about income, but also your assets. From your description, I don't think it is wrong to call you rich, or at least above average net worth and income. Also, you making $135k solo is a much better situation than you+partner making $135k combined as might happen with the median college couple. You doing it solo means your partner can put all their time into...well..whatever they want.

I don't really see anything wrong with your reply, I was mostly replying to the person who was whining that you have to be rich to do it. But I do think, if you had less income and fewer assets you would need to go about doing what you did in a different way.