If you look back a couple of pages worth of posts, you'll see one of my posts about them. I cut my cycling teeth so to speak on a 480 during the '80s. I probably road 3-4000 miles over a two year span on mine (I did 50-80 miles a day because there was nothing better to do amidst the corn fields in summer, plus riding to school and a couple of organized centuries).
I just picked up a 450 for $12, that will be flipped for ~$100-120 this spring. Plus the other day I bought a Heat mtb (my first Technium mountain bike) for $15. It's too small for me, so I've swapped on a cheap riser bar and some slicks. I'll probably flip it this season for $60 or so.
I think the Technium line is a great example of mid-range bike that people in their 30-40s have fond memories of from their childhoods. Back far enough that Raleigh was a "name brand", but accessible to the masses. If I had the room for another bike, I'd seriously consider keeping the 450 for myself.