I think the vendor module needs more than just a few minor additions to make it worthwhile, so what about a logistics one? As people usually don't care about food, a couple of additional goodies would give the cyborg something else to do and make the module a more attractive choice overall:
- The old Food Dispenser. Basic selection.
- A reskinned version of the produce satchel. Stored food items are added to the dispenser's selection.
- Money slot/mini-credit transfer device combination. Revenue is added to the shipping budget.
- Cargo transporter
- Crate transporter. Works like the atmospheric one.
- Bar code printer
- Hand labeller
- M.U.L.E. uplink. Basically the PDA program as a stand-alone.
- Pen
- Most important of all, a rubber stamp!
Regarding your other remark. Players generally go for either construction, medical or chemistry, because those are the most useful and well-developed modules. I suppose mining is technically also fine, but digging into asteroids for 60 min probably isn't very interesting.
If we take a look at the hydroponics module for example, it can't do anything with seeds, plant formulas or gene manipulation and doesn't even come with satchels! Growing plants is the whole point of the module, yet it's overly inconvenient to move produce around. Same problem with engineering: cell cables, the atmos transporter and various tools to diagnose and fix faulty wiring/APCs efficiently are nice, but the inability to operate manual valves renders it effectively redundant, especially since construction cyborgs can perform common tasks just a well or better.
This has been talked about previously, so I'm not the only one who feels the same. I'm aware some people are vehemently against cyborgs messing with the engine,
but seriously...even with a large crew, the generator is rarely online and has a decent output. I'd imagine some people rather pick cyborg than engineer and if they actually want to assist, provide them with a valve-turning tool of some sort (exclusive to the engineering module) to perform the startup themselves. Who knows, maybe the various repressurization ports scattered all over the station would see more action too.