VP haven't had stock on the Ultimate Puff liquids for a while (i use to plonk some on my orders), no idea what's going on, they stock Moreish Puff to, but that's usually more expensive.
Tastes differ (naturally), but i can suggest trying the tasty fruity blue raspberry as an alternative (it's around a tenner for 100ml, extra £1 with nic shots - on vapepotions). although if you want a cooled hit you might want to use a ice nic shot (getting those separate will push the cost up a bit).
In terms of really nice blue raspberry juices though, if you fancy treating yourself, try some aisu blue raspberry, properly cold and really delicious (not as cost efficent, but super tasty, as is their mango).
Handy search by flavour on VP.
https://www.vapepotions.co.uk/blue-raspberry-flavours
Wouldn't bother with Billiards personally, the taste really does align with the cost.