No one can know if BTC price will keep raising or not. So, no one can really tell you if it is a good idea to group your monthly £25 purchases into bigger ones. If BTC raises just as much as it has done this year it is not recommended. .....
absolutely, according to Bloomberg, there are many who think bitcoin price will crash once again like before and at the time there are some few tech dudes who believes bitcoin price can really go to the moon where no one ca even think right now, i am talking about a number with 9 zeros, which we still can think of yet, but they are all gossips now, no exact prediction about bitcoin or any other crypto currencies
the main big problem which is preventing any prediction are governments