I have a fiat allis M65 motor grader from 1974. I use it to maintain 3.5 miles of roads in our subdivision. I'm surprised every time I take it out and make it home still running but it still does pretty well.
Cat D3, Deere 110 TLB, Kubota BX23 and L3800 and RTV900 with restored 1948 Deere M, 1949 Farmall Cub, 1953 Ford Jubliee and 1957 Ford 740 Row Crop, Craftsman Mower, Deere 350C Dozer 50 assorted vehicles from 1905 to 2006
How cool is that... especially if you can use it.
Buying a Dozer was as far as I got... who needs a CAT for 20 acres... rugged acres but it paid for itself grading and putting in fire trails and really enjoyed owning it.