Honestly once you get into 19's that is probable going to be the cheapest your going to find tires as most of the better 19's are going to be upper 200's or int the 300's (a lot depends on width). If your planning to start drifting where your going to be going through tires regularly I would recommend picking up a set of 17 stockers. I've seen people selling brand new take off sets for 3-4 hundred plus you can get replacement tires for under 100. Only downfall is I think the widest tire would be a 225.
Used tires could be cheaper but just make sure you inspect them for patches and that there the correct size for the rim as well as make sure there not old and starting to dry rot. When racing, drifting, or any kind of performance driving I would not sacrifice anything when it comes to a safety item like tires. It sucks they cost so much but gotta pay to play