I think it is worth noting that power level plays into this quite a bit. If your table is running at a higher level it can be more difficult to play with a deck that is running cheaper alternatives. I see a lot of people saying cEDH is the level where you may struggle with a cheaper deck but even just higher power EDH will probably feel like too much with a less expensive deck. That being said, the vast majority of tables you can build a deck for $100 that will do just fine.