April 3, 2021

Flip of the Week: An $80 Keyboard Flip

By AJ Hakimi (The Flipping Ninja)

This keyboard took almost three weeks to sell, which is about average when it comes to selling a keyboard of this quality. It’s not a high-end keyboard by any means, but it’s reliable. 

I got this keyboard from the local thrift store for $12.99. The photos were shot in front of my fireplace where I usually stage my product photoshoots. I posted the ad listings on FB Marketplace and Craigslist for $80.

Here’s the ad description I wrote for this item:

Casio CTK-551 61-Key Keyboard – $80

Keep everything upbeat with this Casio CTK-551 Keyboard.

Enjoy the full features it offers.

It has a musical information system (Backlit LCD). Shows tone, rhythm, song names, metronome, tempo, beat, a note played, chord, Song Bank fingerings and more

It also has a song bank controller. A CD player-like controls (play/pause, stop, rewind, fast forward) for instant familiarity.

With it is a Chord Book function where you can input the name of the chord and the display shows the keys you should press, the fingers you should use, and the notes that make up the chord.

And it has a right and left buttons that allow the individual practice of left-hand and right-hand parts along with playback of built-in songs.


It also features:

  • 16-note polyphony (max.)
  • 5-channel multi-timbre MIDI
  • GM simulated mode (GM tone map)
  • Auto-accompaniments (controllers : synchro/fill-in, start/stop)
  • 100 rhythms



  • 61 keys
  • Comes with a score book
  • Size (W x D x H) : 961 x 376 x 143 mm
  • Weight : 5.3 kg
  • Batteries : D-size x 6
  • AC adaptor : AD-5


All of these can be yours for only $80. 

Comes from a pet-free/smoke-free home.

Call/text/email if interested. Thanks!



Profit: ⭐⭐⭐

$67—Three stars. When I first started flipping in the early days, this would have been a solid profit. Once you gain more experience though, your regular profits will be much higher. 


Small and portable, as most keyboards 61-key keyboards are. Five stars.

Time Spent: ⭐⭐⭐⭐⭐

Approximately 30 minutes of work. Five stars.


OVERALL: 4.3/5

Overall I’d give it 4.3/5 considering these factors:

  • Time spent: appx. 30 mins
  • Transport: Portable, Easy
  • Profit: $67


AJ Hakimi (The Flipping Ninja)

Hey there, I'm AJ, also known as 'The Flipping Ninja'. My flipping journey has been transformative, allowing me to buy sleek cars, indulge in exotic vacations, and even purchase my first house at 24, which I turned into a passive income source. With over 3,000+ items flipped and sales surpassing $300k, it's not just about the numbers. It's about the freedom and empowerment flipping brings.

After years of experience, my mission is to share this life-changing skill. I believe flipping is a powerful side hustle for anyone, from college students to working professionals. Ready to transform your life with flipping? Let's embark on this journey together.

Interested in my full journey? Read More about how I became 'The Flipping Ninja'.

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