@patrickkinney
Your playstation network offer of £24 months for £25 is a great deal. Go with that. Nothing to stop you opting out after 12 months, set the automatic recurring payments off. You can also pay through paypal, and block PlayStation recurring payments on the paypal app.
Don’t be tempted by the finance option for gamepass unless you prefer to pay monthly, it's not the best value deal.
You can get xbox series S brand new on amazon at the moment. There isn't a shortage, I'd pay a little bit more and make sure to get the benefit of a warranty rather than go through a reseller.
But a snag is that you won't be able to use discs, as it is digital only. You can get pre-owned disc games cheaper than digital codes. But it's only a consideration if you buy games this way.
If you haven't had xbox gamepass before you can upgrade and get 3 extra months for a £1 plus all your current gold subscription upgraded at 1:1 cover. But make sure you do it this way round, otherwise it will treat it like a currency exchange transaction i.e. 12 months of gold = 4 months of gamepass.
If you have had an account with gamepass before, it will cost you £10.99 for the extra month, and upgrade of current gold works the same as before.
You can always create a new fresh account if you aren't fussed about achievements and current friends lists etc. £1 for three month offer upgrade applies again
Check this out. No need to buy through official playstation or xbox sites if you can get a better deal from grey market seller.
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The SSD will gill up quickly but you can always add additional memory, there is an official memory stick provided by Microsoft for any games optimised ffor the Series s/x consoles.
You can always stick in an external HDD for older games (previous consoles) not optimised for the series consoles.
You should be able to get 3 or 4 of the larger games on there. The biggest file size I have seen is 150gb.
Flight sim takes up 97gb.
The Xbox Series S, has 364GB of usable storage (136 is system memory).