Looking in all the wrong places

Hello group,

I have some ideas and questions I wanted to ask, please be kind with
your replies if any as I am new to this group and not sure if this has
been batted around before.

What if we are looking in all the wrong places for a singal from an
Extra-Terrestrial intelligent species?

I've read the article in which sending radio singals across
interstellar distances is just not econemical, and now there is a
growing belief that ET would send a "message in a bottle" instead of
by radio.
My take on this is it's half true, ET is probably launching probes to
different points of interists, but they would be using some kind of
communication method be it Radio, Laser or even Neutrino, to
communicate to the probe from the home planet. This seems realistic as
this what we would most likely do.

Now here's where I think were looking for Intelligent signals in the
wrong places.

Where in the galaxy would the highest probability of detecting a
radio,laser,etc. signal from a interstellar probe come from?

Where would a civilisation, who has interstellar travel and is most
likely as curious as we are, send a probe that is the most intriguing
and the biggest science return on investment?

From a science stand point, the most likely objects in the Galaxy that
would attract the attention of an advanced civilisation would be high
energy objects such as black holes, pulsars, nova's, etc.

Wouldn't it be feasable to examine these phenomena's for signs of
intelligent signals?

Maybe these objects become galactic "watering holes" for exploration
driven advanced civilisations?!