Firstly,
It is worth what ever someone will pay for it... that is the great capitalist freedom of ebay

... Also the more difficult to obtain morphs raise the value ALOT. The captive reef linage is a nice touch for increasing value and if it has a name people LOVE names and linage. Anywhere that you can reference it also increases the value. Pink micros seem to blow the price scale thru the roof.
Secondly,
It is a very very pretty micro... Many people also are seeking full colonies such as that, but then they want a deal. If you want the most $ for it probably fragging it will bring that goal.
BUT, straight up I do not go with the $180 per polyp personally... ie: the Lemonade frag that you see in my avatar... has linage, HYPE, TYREE, Controversy, Rareity and beauty but most of all LOL pinkness (I Think, just my opinion), its price through Tyree / Michael Bae was LOL "IS" $120 per polyp
PERSONALLY, Just my opinion and that is what you asked Correct? per polyp $80.00 - $100.00 as a whole colony $600.00-800.00+
This is not meant insultry... IT is a gorgeous micro just from what I have seen it is not $180.00 per polyp material. A more clear picture would also help to sell it. MUST invest in a good camera to sell micros for big $$
I really wish that I had some of it

Great question by the way!