I purchased a bus only DaySaver today(£5.50) using one of the MCard machines at the bus station - quite impressive in that if you don't have an MCard already you can buy the 'ticket' and just like Oyster the machine can chuck you out a pink MCard - there isn't a charge but obviously you have to be buying a travel product.
Really a pain though how they won't allow you to buy a combined bus and train product - at Castleford you can't even buy those at all and since the rail station is unstaffed you're slightly screwed! Not sure why Metro can't stock these self service machines with some rail ticket stock as that is all that would be required I assume, in order to produce a rail ticket counterpart to show to conductors - obviously on the bus / some rail ticket barriers everything is done by scanning your MCard these days.
I'm surprised they haven't been shouting louder about the fact you can now put tickets on yourself if you've an NFC phone. That's made my life a lot easier - especially as they sorted out the problems with my local PayZone store by stopping advertising it as issuing MCard products (still never sorted out its opening times for the other PayZone products it sells...).
You know Daysavers drop to £5 if you buy 3 at once?