I still have a Canon A-1, which is over 30 years old. Used to take film rolls and some X-ray proof bags for developed film.

There are now full frame DSLRs which are smaller and lighter than these old film SLRs.

Mirrorless may or may not be the future. Actually last couple of years were the first in 10 years that both Nikon and Canon saw declines in sales compared to the previous year.

They attributed some of that to phone cameras, not to mirrorless, which actually saw bigger sales declines in the same period.

I like the idea of the Sony A7 but they lack geotagging support and their output isn't quite the same as the Nikons using equivalent sensors (24 or 36 Mp), according to some reviewers.

I have to get a new kit for a trip in November and right now, I'm leaning towards the D750 with a pretty heavy 24-120 for walking around lens. I'd love to save money and size/weight but looking at the OMDs for instance, I see it as a step back or at best staying at the same level for not an insignificant amount of money, unless I buy used kit.

I like the idea of a pocketable camera but if you're spending thousands to go on a overseas trip, do you want to record on something with image limitations?

I use my iPhone for some easy panoramas. And may use it more with apps. which put together quick travel blogs integrating the photos and videos you take with it.

But otherwise, I'm inclined to spend the money and deal with the weight to use the best gear I can afford.