If there is no timeline, you will often find your project put on the back burner for project that do have timelines specified.  

I got a good price to convert to gas - oil burner is old. 

I'm not currently doing terms deals, got distracted with my land business, but it's on the back burner and may do it later on. 

Your project gets moved to the back burner

Other common items are screen repair, light switch cover replacement, replace miniblinds, and replace the little bowl things under each burner on the stove.  

Selling houses is deep on the back burner until I earn my license and really understand the process of marketing, selling and purchasing from an agent's side of the table.

I have it running on the back burner and will get a random sell here and there lol.

In my area they have inspections every so often (and before move-in of a new tenant) and occasionally they'll find a burner out or a floor heater not working - stuff the tenant wouldn't have mentioned otherwise - and you fix that up.

I'll keep it on the back burner.

And while those rapid burners do exist, I would say they are an extreme minority when compared to the total BP population.I would rather have a home that is net neutral in cash flow on the day that I purchase it, but is in a desirable area with 3-5% annual growth, than a $200 per month cash flowing home in a different area that isn't likely to get any appreciation or worse yet will depreciate.