The best strategy in an auction draft is to divide your $200 by each stat category to begin with so Points get $20, Rebounds $20, etc. Then using the total number of starting players you'll have multiplied by the number of managers, you know the range that each stat category will go down. So Points might go from #1 with 2,500 pts to the 8th starter (for say 10 managers) or #80 has like 1,000 pts. So now you have your range in pts for your $20 and you usually would want to assign values for those 80 slots so they total $20. You have incremental ratings (instead of straight-line) so if you have a guy like Durant scoring say 2,500 pts at #1, but the next best is at say 1,250, then #2 - #80 are all clustered closely together, then in that case you would give Durant $10 and the other 79 guys would divide the remaining $10. Obviously that's an exaggeration, but that's the weighted average you want to give the guys on top so represent the value they have over guys that are all getting 20ppg and don't really matter much over one another.
So then you do this theory for each stat category (I was using 10 stat categories in my example) and once you've assigned them all, you have your true value for each player given your league depth and categories. Then you simply take value during the draft. If guys are paying $70 for Durant and you have him at $47, you simply got to pass. At some point you want to spend just enough to use most all of your money on starters since those are generally the guys getting stats every day, so you don't want to take money home with you, and have to pay for someone, but look for the value. Look for that Dirk at $35 where you have him valued at $32 for you money and everyone else has taken a top 8 guy and you need to get yours at some point.
Not sure I explained that great (it's a math mind thing). But take it for what it is. Goal is to maximize your knowledge of who has value and what mistakes others are making by using up their payroll on other players and leaving you good value out there to get incredible value in your 3rd-8th guys.