Hi Matt,
In my humble opinion, nowadays, on exchange of up to $150 you can find around 50 different brutally sharp lens cameras. This is not the point at all.
The question is how are you going to avoid waisting your money in a camera with brutally sharp lens which is mechanically deffective, not to speak unpossible to use. Here the considerations about who is the seller, and what camera are we talking about, and if it has some back up fixers around, that you or we know, come to the forefront.
Therefore, if your budget is about $150, it will be smart that you allocate half of it for either a fixing or a Cleaning-Lubricating-Adjusting job that will ensure your new old camera will enable its brutal lens to dispaly their job, unmolested.
Then we are left with $ 75. I think that this being the case, all Soviet gear should be considered out. You can indeed buy many Soviet cameras by this price, but for an ensured brutall sharpness lens you have to pass through
www.Fedka.com, and for Fedka your budget is not enough.
Fedka cameras are generally good, but not ensured for the case you find a problem.
Nevertheless you can ask about Edy Smolov CLA price, recently discovered service which is making happy many guys, and make your accounts with Soviet gear.
Soviet cameras, enjoy the advantage of an almost ensured good yellow patch for focusing. The Yashica Electro series and to a lesser extent the Konica Auto S2, bring both the advantage of being cheap and carrying well maintained yellow patches, the Electros first and foremost. Besides there is here around at RFF a fixer who can CLA it.
With the Konicas Auto S2 it is very hard you go wrong if you select a model that looks relatively pricy in comparizon with the others. If it happens your new old Konica has a deffect, then at your second one, chances are very hard it will be a bad camera. Within your budget you can buy two highly good looking Konicas.
But both the Yashicas and Konicas referred are not the most compact size type. The mechanical differences among both is for you to be observed in depht.
Of course, I have not mentioned a lot of many other cameras within $150, but I would not run the chance to buy a used camera discarding the great chance I will have to send it to overhaul.
I think this way you will not get any rotten tomato nor be brutalized yourself.
Cheers,
Ruben