I have a friend who owned a fully restored 1982 308 GTS Quattrovalvole for about 5 years. It was immaculate down to every rivet, with the only thing missing being an emblem on the actual wing mirror, which was apparently a strangely-hard part to find. It was imported from Switzerland, which made it more visually appealing that Stateside versions which were burdened by low-speed bumpers.
I rode in it on many occasions, from highway runs to great countryside b-roads. It punted pretty good and was decently quick and obviously had that amazing growl, especially when opened up. Brake fade was apparent, and also had trouble finding second gear for the first few dozen kilometers. Otherwise it was of the caliber you'd expect an entry-level Ferrari of the era. Not quick by today's standards, but had sooooo much soul. I had friends who were driving Nissan 240SX's at the time that would dance around him and then brag to me about it, but they had no idea what the point of Ferrari ownership was. The owner has since moved on to a 89.5 Testarossa.
Currently, they've still got that soul, but I feel the status has rubbed off a little. Before the F430 (maybe even the 360?) the 308 was the most-produced Ferrari ever, making it the most abundant. I'm sure almost every decent-sized city has a mechanic who has encountered one before, so you're not left up to absurd dealers to take car or inspect it if you're looking. However, they've become probably the least-expensive Ferrari to buy into, maybe sharing the spot with the Mondial and 400. This means a lot of cocky business fellows have them so they can brag about their mates that they own a Ferrari. You'll always have someone bragging about something, whether its their high-mileage Alfa Romeo Spyder or D-list Porsche 911. If you can get past the "layman's Ferrari" image that many take it with, then you can enjoy that mentioned slice of soul and flavor. That said, I haven't seen one in years and I see see a Ferrari probably every day here.