Thanks for that link. The article nicely explained various factors to consider.
I am interested more in power than portability. I can use my new tablet for the latter. Since I am now ER'd, I don't need to think about having a portable PC to take to w*rk or use for w*ork on the road--like I did before. Plus, I don't want to be working on confidential stuff like my finances in public somewhere on a laptop; I prefer the privacy of my home, although I know I can always work on $ matters at home on a laptop as well. Maybe the point is I don't want highly confidential matters on a PC that could be stolen when I'm in public. And who knows? Maybe I might get a game or two, or want to try flight simulation--stuff that requires more power and better graphics and sound.
The heat-generating factor was one I had not considered, but is very important.
Desktops are easier and thus less costly to repair. I also want the option of being able to upgrade. Right now I am in the market just for the tower because it was my tower that died. I already have my old monitor, mouse and keyboard, plus external hard drive, external sound card and speakers. I can keep my current gear, and have the option of getting a different monitor, or two, in time. Or an ergo keyboard with more bells & whistles. Or add more RAM. Or switch the video or sound card. That's not as easy or possible with a laptop, is it? (I'm not that tech savvy.)
I also liked this part of the linked article:
Unless a home or office is broken into, the desktop computer is safe from theft, and unless something out of the ordinary happens, it’s safe from damage. The laptop is going to be transported, moved around, set onto various surfaces, and maybe even dropped. It’s going to encounter fluctuating temperatures, maybe be left in a hot (or freezing) car; the possibilities are numerous.
As the article concludes: " If portability is a must, a laptop will be worth the slight loss of performance. If performance is a must, the only options are to expand your budget or accept a desktop."
Whatever I decide, I'm pretty sure I'll get my new PC from Costco for the reasons stated in my earlier post about the tablet I bought there--unless I find some "too good to refuse" offer elsewhere. I doubt it will be from eBay though.
Thanks again for the link.