50% of what us modifiers do isnt needed but we do it...we do it because its out hobby/passion like a lot of detailers.
I think i can just about agree with you on what you said though mate
A lot of it isn't needed, some people will go further than others with the whole detailing thing though. I'll still stick to respecting the people who spend ages with pro paint correction etc even if its not a route i choose myself. (probably down to the fact i have a few friends in the detailing business and my old mans a valeter/detailer himself)
I don't spend loads on cleaning stuff but i spend enough every year to get me through show season. My typical sunday clean would consist of...
-Megs Gold Class shampoo £15
-AG SRP £10
-Megs Liquid Gold or Nattys paste wax £15
-and a few bits and bobs for tyre dressing, exhaust, interior etc £5-£10
...that basic stuff will pretty much last me a year. Chuck in a few microfibres, 2 buckets, a few soft microfibre towels and a mitt and jobs a good 'un.
Its not that expensive if you stick to things which in my opinion you need, when owning a car that attends almost every show of the calendar.
My whole show season kit probably comes to just short of £100, that might seem a lot but it will last me every show of the year then.