My current desktop is getting on about 7 years old. I used to build new computers every year or two, so the idea of getting almost a decade out of the same box

My current desktop is getting on about 7 years old. I used to build new computers every year or two, so the idea of getting almost a decade out of the same box is wild and represents how much PC tech has plateaued. However, I have a nice laptop from work and I really like my work setup, where I just connect a couple ports and instantly have a couple more big monitors, a good keyboard and mouse and other stuff. So I've really been considering replacing my desktop with a decent laptop at home. I've also seen some benchmarks that are putting fairly commodity systems within spitting distance of what my old workhorse can do, meaning if I invested in a decent laptop I could probably keep about the level of performance I have today, but gain portability. Then in the last few months we got the new Nvidia 3080 line (with AMD's RDNA 2 coming soon), the AMD 5000 series processors, new classes of SSDs like the 970 Evo Plus which have performance that used to be what we saw with DRAM. All of these combined in a new system are going to be an entirely new class of desktop performance that my old system won't even come close to touching and portable machines won't touch either. So I'm thinking of going with a new desktop sometime next year once inventory and prices stabilize, and if I need it a rock bottom budget laptop for traveling. Target price <$3k all-in.