Cut that crap. This person plays differently from you; the goals are cinematic experience, storyline and playing with friends
"I bought this hard game and it turns out it is hard! Time to spend five dollars on a new suit of armor that is the best armor in the game and costs nothing to steam roll this game! That way I can spend less time being challenged and more time actually enjoying myself. Dang it is still a challenge, I guess five more dollars won't hurt to get the ammo pack"
Except I bet that isn't how your friend actually feels when he buys the DLC. Hence why I can call him out on it all day.
You want to know how I think your friend acts when he buys the DLC?
"Ohh a cool armor that actually does cool things!"
Or possibly
"Ohh I am stuck... I guess I can buy that DLC"
But that isn't the friend you are talking about.
This is like complaining about time-share vacations. Get better vacations, avoid bad companies
I bought the Sims 3 and at first there was a button to link to the store but it was out of the way and largely ignorable. I really like the game so I bought it and all the expansions even though the glitches and bugs pretty much made it unplayable for often months on end.
Later I downloaded a patch that added a second store button that was big and bright and in the center of my view. It also shows you store items now unless you turn it off... Yet the store button cannot be turned off.
I got Boarderlands 2 and while it worked for a while it had a DLC button in the menu but nothing popped in, in game. Then later on a patch and you can see DLC costumes in the costume section.
This isn't like complaining about Timeshares...
Those games have been receiving severe backlash. Also, both are by EA (also, SimCity) which are quickly entering many do-not-buy lists of players
Except those games have been blacklisted because they SUCKED! and had issues beyond rip off micro transactions meant to break the game.
As to the "other player perspective", here it is specifically for Dead Space 3
"I'm playing this game, it has cool guns" - "Oh hey, more cool guns! It's $5 but I can afford that" - "Those guns are AWESOME!"
The difficulty never enters the equation. The purchase was never made to make the game easier, but rather to get something that seemed to match the value.
I get why you are drawing the connection to "This game is hard, better buy this DLC" but I have never met anyone like that. People I know online and offline who buy game DLC do not play difficult games/use high difficulty levels.
Conversely, people who DO play harder games/difficulties do not buy "enhanced items" DLCs
A small aside on this, Mass Effect 2. I played as the Engineer character, and one of your main weapons as that class was an SMG. On release, the game had no good SMG's (or maybe not until really, really late. I could be remembering wrong.) I ended up getting some random DLC for the story bit, and that came with a great SMG - powerful, but a bit too powerful. So I couldn't even enjoy that
Conversely, Mass Effect 3 on-release had bonus single player weapons that were all flavour. They were NOT very powerful, but rather unique and different from everything else. And then they got right back to making paid-for unbalanced weapons. They obviously CAN do better.
As for Dragon Age, I have only played the first one and I bought that as a complete package. That came with a HUGE collection of bonus armor/weapons/other items that I hate; they are easy to get and very powerful. It literally ruined a lot of my enjoyment of the game.
Back to responding...
I get your complaint about Sims and Borderlands... but... those are two series that are (in)famous for having EXCESSIVE amounts of DLC, with about 40% of it beign story/concent and 60% being "EXTRA ITEMS!"
...what did you expect?
It's kind of like getting Amnesia and complaining it's too dark. Birds fly, cars get stuck in traffic, and Sims 3 publishes a $30 couch DLC to nag you about.