Affordable router that has bandwidth management features?
 

I want to give my neighbors access but I want to either limit it OR have some kind of prioritization feature where their traffic can't ever fuck with mine
Does it exist?

The only solution I came up with thus far is to use this older router I have and only enable B and G
That is kind of a dumb solution

no there is nothing cheap that will do that.

Yep, cheap, good, does the job: pick two.

The closest you'll find on the consumer market with traffic prioritisation features for guests is something like this below.

AC1750 Wireless Dual Band Gigabit Router

Archer C7

Supports 802.11ac standard - the next generation of Wi-Fi
Simultaneous 2.4GHz 450Mbps and 5GHz 1300Mbps connections for1.75Gbps of total available bandwidth
Dual USB Ports - easily share a printer locally and files & media with networked devices or remotely via FTP server
Guest Network Access provides secure Wi-Fi access for guests sharing your home or office network

AC1750 Wireless Dual Band Gigabit Router Archer C7 - Welcome to TP-LINK

Those are nice routers but I had them a lot
Is the athena pretty good?

There must be some way to do this
What about making an extra computer into a repeater and using a software solution?

I would like to limit them to about 30 megs
Looks like B would give them 11 megs while G would give them 54
(I'm just thinking about making them a second hotspot by wiring their router to my main router which should limit them)

But prioritization would be great because I want the best ping times on earth possible

Something like this could help you

300Mbps Wireless N Router TL-WR841ND - Welcome to TP-LINK

if you are looking for features like IP based bandwidth control.

Try this:
IPCop - Home

Take a look at the NetGear routers. The one I have has a separate SSID just for guest with separate passwords, etc. When someone attaches as guest, they don't see any of the devices you have unless you allow it.

Seems to do exactly as MrMaxwell needs which is the type of thing I need to tbh. I have guests stay & it's not the first time using their phone & IPad at the same time reduced our IPTV down just a bit too much. Thanks for the link :thumbsup