I use a plain 124 while in Turkey which I bought off this Forum a few years ago, the shutter needed a CLA as the shutter stuck at low speeds but is still about half the figure you've given. It was worth it. Does the camera need a full CLA ?
Here in the UK I use two Rolleiflex TLR cameras, one an E2 f3.5 Xenotar is mint so I only use it sparingly, I picked up a nice Automat with an Opton Tessar at a Flea market 2 or 3 years ago for £70/$91 and I'm now using that here in the UK as it's far less valuable compared to the E2. I was actually looking for a second Yashicamat 124 or 124G and hadn't expect to find a good Rolleiflex for that price. I also have a Microcord essentially a British Rolleicord clone.
I agree with Ko.Fe I prefer the Yashicamat over a Rolleicord/Microcord, mostly for the wind-on, I bought a Chinese modern focus screen off Ebay planning to fit it in the 124, instead I put it in the Microcord.
My Yashicamat 124 has been a workhorse when I was living in Turkey, (and when we go back), it's not precious, it can be used and carefully abused, the meter is OK - surprisingly accurate - on camera CDS meters are quirky but I grew up using one on a Zenit E and learnt how to get the best from one. Image quality the Yashica 124 and 124G are on the same level as the Rolleiflex cameras with Tessar or Xenar lenses, the Planar and Xenotar ;enses are a touch sharper *edges and corners) at wider apertures but I'm happy with the Tessar type lenses.
Ease of use and focusing the 124 & 124G are on a par with my Rolleiflex cameras but a little bit lighter, I get great exhibition prints from all my TLRs. If I thought the Yashica was lacking I'd have been taking a Rolleiflex when we visit Turkey
My suggested upgrade would be get a second 124G, a bit of patience and you'll find one in near mint condition for under $130, or maybe be lucky like I was and a Rolleiflex for even less
Ian