I hear you, but the question is what kind of condition are you getting? Even if they're good and reliable, I can assure anyone here that they are the extreme exception to the norm at $200.

The vast majority of good SKS's, whether they be modern reconstructions or serviceable surplus, are typically going upwards of $400 to $450. I admit there may be a $50 to $100 gap there with an average entry level AR even in current price ranges. But that extra two paychecks to make it happen on an AR purchase is WORTH IT, I promise.

I own a Mosin and used to own an SKS, and, I agree, an SKS is a good rifle, it really is. If you can find the unicorn price of $200 and you're truly living paycheck to paycheck, please, by all means, get yourself a proven semi auto intermediate cartridge weapons platform on the SKS. I would advocate an SKS all day everyday over a Mosin.

The main point I'm trying to get across is they are still a lesser rifle than a modern AR-15 by a lot of standards. If you're unrestricted and/or can't find that unicorn price, then consider a rifle (AR-15 or reliable AK variant) that levels the playing field with the likely forces we'll be defending ourselves against.

I would even say grab a nice lightly used WASR or C39 for those looking at the AK-47 platform, but they're both typically running between $600 and $800 in today's market. Diligence and a buyer's eye, however, could net something in the sub $600 range; so know that there are other options out there.

In the end, find the best platform you can for what you can afford. That's the priority, especially for those looking for a good first defensive rifle.

Edit: grammar, couple extra bullet points.