I have been running my '88 4 seater as a daily driver for the last (nearly) 3 years. For a year of that I had a weekly commute from the West Midlands to East kent. For 6 weeks one winter it was the only car in our household as my wife's jeep got dinged and was off the road. I have covered just over 30k miles in three years and barring a few issues due to the age of some rubber components early in my ownership I cant say I have suffered any issues.
Using it all the time hasn't diminished the special thing, in fact I think it is even more enjoyable.