I think some of the replies give good reasons but for the wrong situations
An IR is of course great for
European touring but it doesn't help getting into a mountain runway which doesn't have an instrument approach.
We have been to Corchevel several times direct from strip in Berkshire
Not any more... Courchevel, among about 50 other French airports, no longer has Customs, so those great direct trips from the UK are finished.
In fact I am amazed the French did that stupid move because they not only lose business from the UK but also Switzerland, Croatia and importantly Russia. All for the cost of paying
one policeman to look at passports!
It's quite possible to do what the OP wants but he will have to pick his weather carefully and that applies at any time of the year. You can get lovely high pressure blue-sky conditions in the winter too; in fact in the winter one gets much less haze at altitude. The weather factors limit the despatch rate to a level which is probably much lower than most people would expect.
If OTOH you want to fly to a "proper" airport, somewhere in the vicinity like most skiers fly to and then get a bus, then an IR with a de-iced plane with all the kit will give you a good despatch rate. But that's a long road from starting a PPL...