It's odd to me that they won't release a cheaper, plastic version of the Analogue NT that would fit in line with the SNES and Genesis models they are offering. However, if the NT is too expensive, I think it is generally accepted in the gaming community that the Retro USB AVS is an acceptable alternative for that price range.
Only thing against AVS is that it's 720P, where as Analogue is 1080P.
Maybe it will be updated.
Also not big fan of the big top flap.
On the other hand AVX has front loading for NES carts... but I do have NES everdrive and my carts are stored away.
In agreement about the resolution and appearance advantages of the Analogue. But the price difference still pushes me towards the Retro USB. Also, the Retro USB has a short list of features that the Analogue doesn't have. I just don't remember what those are off the top of my head.
Let see:
Analogue NT MiniCompatibility
NES, Famicom, Famicom Disk System (requires FDS unit)
Region Free
Worldwide Compatibility (PSU: 50-60hz, 100-240 volts)
Audio
48KHz 16 bit
Digital audio via HDMI
Analog audio via RCA
Famicom Expansion Audio Support (both NES & FAMICOM slots)
Full panning / volume support for all audio channels
Video
HDMI 1080p/720p/480p
RGB, Component, S-Video and Composite
NTSC (60Hz) and PAL(50Hz) support
Lag free, zero signal degradation
Special Features
Original NES Controller Ports
4 Player Compatibility
Famicom Expansion Port
Everdrive & Powerpak Compatibility (see support page)
Famicom Microphone Support
USB port for controller charging
SD card firmware updating (via Nt mini's SD card slot)
Retro USB AVSVideo: 720p wide screen HDMI output. Supports 60Hz (NTSC) and 50Hz (PAL) for worldwide TV compatibility!
Audio: 48kHz HDMI output with support for expansion audio from carts
Display: Variable pixel scaling including integer options(1:1, 4:3, 5:3) with optional variable darkness scanlines
Carts:Slots for both NES and Famicom carts. Supports all regions and all carts, NTSC, PAL, Flash Carts (PowerPak), Pirates, Hacks, Homebrews, etc, etc, etc.
Ports: Built in NES Four Score Pro, Famicom Expansion Port
Output: HDMI Type A (video and audio)
Power: USB Mini B for power and data - Plugs into any 5V USB port/power adapter for worldwide compatibility! Plugs into your computer or laptop for easy updates!
Cheats: 5 cheat code slots with built in code database supporting Game Genie, Pro Action Replay, Pro Action Rocky, and raw formats
Online: NA Scoreboard online score system through USB
Updates: Upgrade FPGA configuration and menu system through USB
So in short bit interesting differences:
AVS has build in cheat system and Online scoreboards thru USB.
NT Mini has microphone input.