A year later, I picked up a 10-unit building (that has almost tripled in value).  

The drawbacks are double or triple data entry at times.

If you don't stay on top of them though, a project timeline can easily double or triple.

Converting to STR's will double or triple your income in some areas.  

Get bids for good enhancement:  Dual or Triple Pane windows. 

@Barbara Stapleton at least you didn't triple-dog dare...no one can turn *that* down. 

This forum alone tripled my understanding of what to expect ahead.

Chicago has triple their employment base.

:@David FaulknerWhen a correction hits, nobody is spared... it is just a matter of be on different waves...Listings in the cities that I have been watching like Sunnyvale, Los Gatos have all more than tripled compared to last year...

It's worth the 25%, unless you live nearby and really want to handle that kind of stuff.Related to the bullet above: However much you think you will spend on capital expenses or repairs, triple it.