Small number of loads = decent beam scale, manual dippers to get basic charge and a manual trickler or very small scoop to top it up to desired weight.
This is what I do also. RCBS 505 beam scale, $15 set of Lee powder scoops, and a $20 Hornady trickler. A motley crew from various suppliers.. the 505 came used in a batch of reloading supplies. The Hornady trickler isn't exactly the Cadillac of tricklers, I added a base to make it slightly higher and more stable. I'd suggest you get a better one for $10 more, maybe RCBS?
To put things in perspective, I enjoy reloading. It's another shooting-related activity I can spend a few hours at a couple times a week in the evenings rather than sit in front of a TV.
I reload mostly with stick powders, such as H4350 for a 6.5 Creedmoor. Usually 30 or so rounds at a time. A single kernel of stick powder is enough to move the beam on a 505 scale from "0" to "not 0", so unless you decide to cut kernels of powder in two I really don't see the need for a "more accurate" scale.
I read about the difficulties people have with digital scales, such as sensitivity to fluorescent lights, battery levels, zero's that wander, etc. Then others complain about this electronic dispenser or that being finicky, often buying another "because the first one was junk".
Really? If I have a draft free spot to work in (I do) my scale works pretty reliably. From start to finish my powder weighing process takes less than 30 seconds per cartridge.
Scoop powder out of a small glass bowl, dump in scale pan, slide trickler spout over the pan, a few turns to top up the charge, position funnel over case mouth and dump it in.
For low volumes, the system your friend uses works quite well for many of us.
To start out, I'd suggest you try that way first. The dippers and a trickler won't cost you much, and you'll probably want a good beam scale anyway. If you find it doesn't suit you, then move to another method.