Should I buy a Eufy C220 camera for $7.31 or $6.14 after cash back I think?

Nothing else I would use the $25 from Dell on, otherwise.

Seems like they pulled RTSP out of the firmware a few years ago, but more recent review's still showing it?

If it ever gets to custom firmware like https://blog.vasi.li/flashing-a-eufy-c-120-security-camera-with-custom-firmware/ it would be even more difficult without Windows.
Flashing a Eufy C-120 Security Camera with custom firmware

Liberate your IP camera and unlock RTSP/ONVIF and other goodies with a custom open-source firmware. Abysmal state of consumer IP cameras As a home automation enthusiast, it was only a matter of time before my interest in security cameras was piqued. I started looking into the possibilities and realized,

Vasili's Blog

FUCK

"Sorry, Eufy C220 Indoor 2K Network Camera - Color is out of stock or no longer offered. We removed it from your cart."

JLab Go Party Portable Bluetooth Speaker System - 10 W RMS - Mulberry - 80 Hz to 18 kHz - Battery Rechargeable | Dell USA

Go. Party.Delivering impressive audio from dual 2" full-range drivers and dual 2" passive woofers, this 10-watt portable powerhouse produces rich, deep bass and crystal-clear highs (80 Hz - 18 kHz). Customize both audio and lighting effects through the intuitive JLab app, setting the perfect vibe for any gathering. Don't let a splash dampen the celebration, with IP56 waterproofing, this speaker keeps the party going. Take your festivities to the next level with LabSync mode and sync up to 100 speakers for the ultimate block party.

Dell