My Daughter ended up with a 1981 280ZX as a first car and loves it, original a cheap buy, but when the engine died as they do after going around the clock a few times we had to fit a new engine and make the commitment to keep it on the road. This means we now have to get serious about fixing the rust (no more bodgey patch jobs). Luckily it is a labour of love.
I have an MGB, and with all the "Unique Car" magazines around I suppose it's my fault that she bought a Zed instead of a sensible car like a souless Hyundai.
It's good to hear that the prices are rising, but it was never bought as an investment.
It is a bit more difficult to get spare parts for as compared to the MG which has all parts available as original supply or re manufactured, deteroration of the plastic interiors is also a challenge.
The 280ZX when compared to the 240 & 260 Zeds is similar to the comparison of the rubber nosed MG to the chrome bumper models.
The changes in the later models to meet safety standards and increases in interior comfort being detrimental to the original sports car concept.
But over time I believe both the Rubber nose and the 280ZX will have their day.