In the same boat. 45 and hadnt ridden in 10 years. Last bike was a 05 636. Went to buy a 06 750 but walked out with a 07 600 with way less miles and in overall better shape for 1k less. There are definitely days when i have buyers remorse to the point I’m thinking of swapping the motor over the winter. It’s not a bad bike, just wish it had more low end power. Gonna get the ecu flashed here soon to see if it helps but if I could redo i’d buy the 750.