Both are priced about the same at most of the LFS's I have been to (around 15-25$) However, bluezooaquatics sells theirs for 90$.. https://www.bluezooaquatics.com/productDetail.asp?did=1&pid=13224&cid=17 and they sell their spotteds for 30 I believe, so I am not really sure.
pics of 180:
nems https://gyazo.com/8a2a99d11a7b8248342a810052f55600
green birdsnest https://gyazo.com/876fbc8f6c5432f502cda5b0eb151fd6
birdsnest https://gyazo.com/960a91285b44c675102c11b45344d228
anemone island https://gyazo.com/924f8fcf423e9ae2eafa296485b2e598
side of tank https://gyazo.com/129f8a1dbdbeab8573ae118a96ff4689
other side https://gyazo.com/40239a62c8fe7e0b0dc45679b615ccee
new rockwork https://gyazo.com/527abee1ad3c35892922249c77a953c6
pics of 180:
nems https://gyazo.com/8a2a99d11a7b8248342a810052f55600
green birdsnest https://gyazo.com/876fbc8f6c5432f502cda5b0eb151fd6
birdsnest https://gyazo.com/960a91285b44c675102c11b45344d228
anemone island https://gyazo.com/924f8fcf423e9ae2eafa296485b2e598
side of tank https://gyazo.com/129f8a1dbdbeab8573ae118a96ff4689
other side https://gyazo.com/40239a62c8fe7e0b0dc45679b615ccee
new rockwork https://gyazo.com/527abee1ad3c35892922249c77a953c6