It is fair to say that the PlayStation Classic didn't quite live up to Sony's expectations. While Nintendo had no chance of keeping up with demand for the NES Classic, the PlayStation equivalent has failed to get people scrambling to get their hands on one. The good news for you is that means you can get your hands on it without paying the £90 RRP, and the latest stock-shifting offer bundles one of the mini consoles with a bunch of SIM only plans from EE and Vodafone.
This deal is coming via Fonehouse, which is bundling a free PlayStation Classic with a number of phone and SIM only deals on both networks. The cheapest of those deals is a 12-month EE plan with 10GB of data, unlimited calls and texts, plus six months of free access to Apple Music and three months of BT Sport. It costs £20 a month, but thanks to a £96 cashback deal the amount you have pay is just £12 a month.
Obviously the £144 total means this is far from the cheapest way to get a PlayStation Classic, but if you need a new phone plan there are a lot of worse offers available. Like the £14 a month EE contract that only comes with 2GB of data.
If you hate EE, or would rather go with Vodafone, the cheapest Vodafone deal with a free PS Classic is going to cost you £27 a month for 12 months. That has 15GB of monthly data, unlimited calls and texts, and a free subscription to Amazon Prime Video, Sky Sports, Spotify, or Now TV. It doesn't say how long that subscription is, however.