Yeah but he doesn't need all on that to start brewing all grain. I don't think anyone actually needs all of that.
You are absolutely right, but many of us end up buying a lot of stuff that we don't NEED. This thread has set out that you can do it rather cheaply but that it is not unreasonable to expect that you will end up buying lots of stuff.
For example, here are my expenses for equipment to date (I am not including consumables or replacements for things I have broke and I am certainly forgetting some things):
Starter Kit (including bottles) -- $125
3 Extra Buckets (w/ lids and airlocks) -- $51
7.5 gallon SS brew kettle -- $67
Plastic Spoon -- $ 4
Carboy (w/bung and airlock) -- $45
Hydrometer Test Jar -- $5
Strainer -- $15
Beersmith -- $28
Funnel -- $9
Thermometer -- $18
Muslin Bag -- $5
Flask w/ stopper -- $21
Grain Mill -- $125
Cooler Mash Tun & HLT (converted myself) -- $150
Bigger Mash Tun -- $75
Autosiphon -- $13
Initial Keg Set Up -- $568
2 new kegs
5# CO2
Double Regulator (so that I can have multiple pressures)
All tubing, including picnic taps
3 Reconditioned Kegs -- $180
CO2 Splitter -- $47
CO2 Tubing/connects -- $27
Liquid Tubing/connects -- $42
Counter-pressure Filler -- $60
Used kegorator & parts to convert to 3 tap system -- $500
So, I've spent about $750 in brewing equipment and $1400 on kegging equipment. Could I have gotten a lot of this stuff cheaper? Of course. Do I have a lot of stuff that I don't use? Not really. And I have received a lot of things as gifts, including: a turkey fryer, a wort chiller, and an extra corny keg. I also happened to get a spare fridge for free and I use that to cold crash, cold condition my extra kegs, and store my yeast and hops.
I am finally at the point that there are not really any toys that I really want (I could use a refractometer, but don't care enough to buy one), and I have not spent much on new equipment in a couple of months.
At some point in the not too distant future, I plan to build a temperature controlled fermenting chamber to make lagers (my basement is a nice 60-62 year round so I have avoided it by brewing nothing but ales). That will run me at least a few hundred dollars.
I also did not include the books that I bought. While you might prefer to do your research online, I prefer to read up on things. I have multiple books on homebrewing and have ended up buying multiple books about beer more generally since I started.
SO, this hobby can get very expensive, very fast.