Here at Honest John Classics, we love old Volvos. The model you have sounds like a fine workhorse... and to some extent that is the problem. Because they just keep going and are in use regularly as every day cars, this era of Volvos have a hard time making it through to classics status. The square-styling of the the 700-series hasn't helped its cause, although plenty of people appreciate the right-angled nature of the design. If the 740 is something you love and feel an affinity towards, by all means keep it going - it sounds like it's got plenty of life left in it. At 190k, it should be nicely run in.