The 80/20 principle seems to always be like .... 20% of the staff does 80% of the work. 80% of the gripes come from 20% of the people. In our hardware co-op, 20% of the dealers buy 80% of the merchandise.
In detecting, out of every 100 machines sold, only about 20 are used regularly. Out of that 20 only about five of the folks really learn how to use their machine effectively.
Folks make the mistake of buying (talking themselves into) a lesser expensive, beginning price point machine when they could have justified a better machine .... because they "are beginners and don't know if they will enjoy the hobby or not". That makes as much sense as buying a jon boat to see if you'll ever enjoy yachting!
If cash flow is an issue, then fine, buy the best machine you can afford. You'll have fun and find stuff IF YOU LEARN THE MACHINE and USE IT REGULARLY! Obviously, a better machine will better handle difficult ground conditions and find smaller, deeper items a lesser machine might not signal on, and provide some of the features an experienced detectorist has learned is important or just more entertaining .... more acurate target ID, target depth indicator, tone ID, proper weight / ergonomic balance, durability, etc.