Taylor what do you need the machine for and what do you expect earnings wise from it?
I have several pieces of iron with 4-6K hours on them and wouldn't think of replacing them anytime soon as they are all money makers - the reason we run the iron in the first place.
Some of our equipment-
2011 321DLCR is a mainline hoe for one crew and it's pushing 6K hours and showing no signs of giving up. The machine is a money maker. It's paid for so it's only costs are taxes, insurance, fuel and maintenance.
2004 953C with 5K hours. It's ready for an UC for around $15K to be ready for another 5K. It's a machine that floats between our 2 crews and doesn't get used everyday. It's paid for so it's only costs are taxes, insurance, fuel and maintenance.
2004 D5G with over 5K hours. This dozer is also a floater between the 2 crews as needed. It's paid for so it's only costs are taxes, insurance, fuel and maintenance.
325FL with 600 hours bought in 2018. $220K tractor that we used and RPO to buy. After the 6 months of rental that was 100% applied to purchase price the note was $158K, $3K+ per month for 48 months.
Now I need that 321DLCR to help pay for the 325FL. When the 325FL is paid for and the 321 has 8-9K hours on the clock, it will be time to retire the 321 and buy another 50K lb hoe. The 953 and D5G will be maintained and repaired in order to keep in the fleet for probably the rest of my working career and accompany me into retirement. I have plans for adding another "smart" dozer this year, either a 5 or 6.
Take care of your equipment and it will take care of you.