So for ur first ever detector ur gonna drop $3,000+ ? Me I don't recommend that really what if u come to the conclusion detecting isn't for u, yes u can sell it but u will take quite a hit. For a first most people go towards a middle grade machine $4-500 area if u get a starter which is alright & if u do like it ull want to upgrade quicker, least with the middle grade u can sell a lot quicker or ull b content for awhile. Main couple things u have to ask urself is
What do u want to detect for?
Land or water or both
Budget ( & remember just cuz its a $3000+ machine it isn't gonna make items apear)
If u wanna go high end even look into what I'm using the whites v3i is a multi frequency use multiple at the same time & has the most options of any other machine made,then the deus totally wireless crazy fast responses,lots of options very lite , & my Atpro a real multipurpose land & water detectors. I'm not knocking those ones ur asking about Im just saying if its close to or ur first u may want to think about it this is a hobby yes guys find cool things bit can u count on it no its a hobby to have fun with friends etc well good luck my friend