ST170 future potential

[Rallye Sport]

I've noticed a couple of ST170's on the market recently for around the 4-5k mark. To me it seems like they've almost hit rock bottom and would be a great fun for money.
Does anyone think they have any value as a collectable in the future? I know it'd be depend on the cars condition and would take twenty years or so...
I try not to speculate on cars, at the end of the day if I bought one, had some fun and sold it for the same money in a few years I'd be happy, it's a car I've always wanted to own...

P.S. anything to look out for when buying one? cheeRS...