Advantage of Gateway 3DS Flash Cart over Free arm9loaderhax/Luma3DS/ReiNAND/Cake/Rei

Since the announcement and tutorials (honorable mention of Plailect's guide here) of arm9loaderhax (a9lh) and Luma3DS (also known as ReiNAND previously), players are now able to run their 3DS roms and homebrew directly from the microSD card for Free. So how will these affects 3DS flash cart manufacturers such as Gateway which sell their flash cart for profit? Is there still any reasons to buy a dedicated flash cart to play the 3DS roms if you can play it for free?

Note: For those that followed my tutorial on installing BrowserHax and Downgrading to v9.2 here, you can simply start from Part 3 from Plailect's guide to setup RedNAND and downgrade to v2.1 for arm9loaderhax for your 3DS console. Although it is a long winded instructions, your effort will be rewarded in the long run. Just be sure to follow each and every instructions carefully during the process.

From there onwards you can always update your arm9loaderhax patched sysNAND to the latest version without ever worrying about bricking your 3DS console! That is only valid if you use CFW such as Luma3DS which will have write protection against FIRM0 and FIRM1 file on your sysNAND. Gateway mode does not ensure this! So never attempt to update your software when you're booting into Gateway mode via a9lh.

[Guide] A Detailed and Beginner Friendly Walkthrough Guide for Installing BrowserHax, MenuHax, and Downgrade New 3DS LL/XL from Firmware 9.9J to 9.2J


Prelude 

Why I Upgrade from Original 3DS to New 3DS LL

tldr; Skip to the next section <Guide Start> to jump straight into my ordeal of downgrading my 3DS LL v9.9J firmware into v9.2 and booting into Gateway Mode

Having played on the Original 3DS (yes the small clamshell one that Nintendo first released back in 2011) for quite some time now, I finally decided to purchase a New 3DS LL (also known as New Nintendo 3DS XL outside Japan). As opposed to what others had complained about the LL/XL for its huge size, bulkiness and unportability, I actually found it to be pleasing to my play style. Main reason that I purchased it is its large 4.88 inch screen size. If the number seems meaningless to you, think of it being almost the same size as the PS Vita. Sure you wouldn't see much crisp image like the O3DS or the New 3DS regular edition due to its larger PPI, but frankly, for me that is negligible and it's the 3D immersion that really benefits from such a big screen. Not that 3DS console is known for its HD like image for gaming on-the-go.

Mind you that I had an average sized hands as well and holding it definitely helps to prolong my play time until I start to feel hand cramp.

Another reason for choosing the New 3DSLL over the regular size one is I think the 20% screen estate increase from my O3DS wouldn't be that much noticeable after all.

So there you have it.