Earlier this month, Microsoft announced a substantial price increase for Xbox Game Pass Ultimate. If you're a subscriber in the US, you will now be charged $30/month, a $10 bump from the previous $20/month rate. The new price is effective immediately, so you may have already paid the increased rate if you were billed already this month. That said, there is a way to avoid the price increase: prepaid codes. The price of prepaid membership codes hasn't changed--at least not yet. Over at Amazon...