A consideration

Hi everyone, a question: Do you sew for exercise and/or serious outdoor activity? And do you think it's been worth your while?
I know Melissa makes her own running gear, and so do several other running seamstresses. The only blogger I know who sometimes makes outdoorsy stuff would be Carolyn.
Me? Well, to be honest, for most of the year, I'm not really the sporty type. I do indoor rock climbing occasionally (used to be a regular thing but when I and my climbing buddy moved from art school to working life, we couldn't match up our schedules anymore) but that's about it. When on holiday though, I love to be active in the great outdoors. Mostly hiking but I'm definitely open to other options. Climbing, caving, canyoning or rafting? Where do I sign up (often, I don't get around to doing as much as I'd like because we mostly go on holiday outside the peak season and sometimes move around a lot)?
I think the reason I never do stuff like that at home is the simple reality of the country I live in: the Netherlands just might be the flattest country on the face of the earth, with the most cultivated landscape. Just to illustrate my point: the Dutch kayaking championships are held at an amusement park's white water thrill ride....

So, where sewing is concerned, I make stuff for my every-day not-on-holiday life and odd things I just want to make. For my holiday activities, I have the necessary gear (hiking shoes, climbing belt and shoes), sometimes buy what I think I'll need (this year: a couple of sports bras) and otherwise make do with the more casual of my me-made clothes.

Here I am in a picture E took of me while we were hiking up the Eiskögel (a mountain in the Alps south of Salzburg). We took this picture as proof we got all the way up to where the snow was. 

This is view from that spot. Any readers from countries with proper mountains of their own may laugh, but for flat-land-dwellers like we are, walking up this far is impressive.
On this hike, I was wearing my fitted black twill trousers, red V-neck top and, when we got high enough to get cold, my raglan sleeved cardigan.

I think these clothes worked well enough. We met a lot of other hikers who were wearing purpose-bought sports clothes. I can understand how soft-shell jackets may be lighter-yet-warm and how other sportswear may get less sweaty (which would be a good thing when hiking on a warm day). However, the weight of my cardigan is really not an issue (if anything, it's way lighter than our supply of drinking water) and I've owned sportswear in the past which was every bit as sweaty as any other type of clothing...
Specialist materials seem to be the key to a lot of the specialist outdoor and sports clothes. And despite Melissa's list, I don't think that's good news for the seamstress. Special fabrics are often hard to find, expensive and/or require special treatment...
And in my case, the question is probably: If I didn't sew, would I buy special clothes for those few weeks on holiday?