Its the cost more than anything Im thinking about. Like Jerry said, we are some kind of nuts doing what we do. Its not for everyone.
A 180 is a very large tank and fully equipt with even modest equipment is quite expensive. To offten people jump in and find out just how nuts you have to be to keep doing it and then say its just not for me. I would sooner see someone new starting off with something small first. See if they like it or not. You could always argue that it costs more to redo it if you want to upgrade later but who here hasnt? We all upgrade or change our minds about what it is we want or how we want to do things. There is another reason to start smaller. Your first tank is NEVER how you would like to do things. Even if you ask everyone here whats the best way, you will want to do things different as soon as you build it. Untill you see whats involved and have some hands on knowlege of what it is your wanting to do, I think its better not to have to much money tied up in it. We all upgrade or down grade at some point. Mostly because we find out that how we did things to start with isnt really how we want to do things now.
Its kinda like Camping. Your someone who has never been camping before but now deside I think I want to start. The only people you know that camp are a bunch of Camper nuts, real fanatics. First question is what size camper should I get? All the fanatics say oh, you got to go big. Nothing like tooling down the highway in a camper as big as your house. $20,000 or more house camper. Dont waste your time on a pop up for $1500, youll only want bigger. The fanatics arent wrong in saying that the huge mobile home isnt nicerer than some small pop up but I wouldnt tell someone to do that. Id say buy the pop up, go camping a few times and see if you like it. Then if you do and you know what is like and have more of an idea of what you want then sell the pop up and get something bigger.
Again Im ranting.
Its an interesting conversation tho. A topic that is asked many many times and like EVERY other topic in this hobby, We all have our opinions.