Can the OP inform us who don't follow him of what plasma he currently has and the model OLED that he bought to replace it?
I have three Panasonic Plasmas from 2009 or so, two bought new, and one purchased used, all from the TC50 and TC54 Viera series of 1080P plasmas sold through Costco (from $999 to $1299 back in 2009). One 50" has been in literally continuous service since 2009 about average 8-10 hours per day in our family room for my handicapped daughter via DirecTV DVR and the other 54" models are in our living room and Master BR suite. Picture is still very good and yes, they all put out about 250-300W of heat per kwh as most plasma panel did/do. All remain stand mounted although I have tilt stands for all of them in storage. IMO, the cooling via the regular stand helps to keep the plasma panels ventilated well which is important for the power supplies to stay healthy. The power consumption has been mitigated somewhat by replacing all CFL and incandescent lighting with energy efficient LED lighting in the house.
While I have considered changing out to the newest LED or OLED display panels because of perceived improvements in picture quality, much lower power consumption, or significantly reduced prices for newer panels, I'm quite concerned about Samsung and LG panel longevity and overall service capability - IMO, I've read of a lot of difficulty with those manufacturers and overall service and warranty quality - however, that may not be the norm for many of you and I'm happy to hear of many folks who have had good luck with the OLED TV's they have bought. Like some audio products, I tend to gravitate and stay with what works for me, and the Panasonic Plasma TV's I've had have given me very good service life over 10 years of relatively hard work. One of the 54" models was picked up used with only about 2000 hours on the panel and has performed well in my LR for YouTube and Netflix viewing. I still like Sports on Plasma panels. When I see OLEDs displayed in stores, they look way over saturated and IMO, very unnatural, sort of like how Far Eastern Audio has a different frequency balance in the past.
I've been able to find used Panasonic Plasma TVs from 42-50-55" of the same vintage on CL here in OC for $40-200 or so complete with remotes and/or stands. IMO, if they have survived this long, they probably will continue to do so if not abused or already have screen problems. They are not particularly difficult to move around or transport if you have the correct vehicle (I have two minivans so very easy to put one rear seat down and slide it right in and secure.) There are also kits from various suppliers to recap the power supplies, replace whole boards or subsystems, and/or troubleshoot the units if necessary although for some, it may not be worth the time or money since another used unit is not particularly hard to source. In fact, there are currently 6-8 nice candidates in the 42-55" range on OC CL right now (I don't tend to look at any of the TH- series or those without tuners or only 2 HDMI input sources) for not a lot of money. Panasonic maintains very nice webpages on their previous Plasma models complete with online manuals and model numbers of remotes. Remotes can be had from Ebay or even the local Goodwill electronics outlet here in Santa Ana sometimes.
While plasma is now an obsolete technology from a current consumer and manufacturer standpoint, they still offer a very good picture and functionality if properly care for, calibrated, and used. Certainly there were problematic models from Panasonic and Samsung over the past 10-15 years before they were phased out and discontinued for the LED/LCD onslaught, but most all of those have already met their e-waste fate. In fact, I've already gone through 4 DirecTV receivers or DVRs in my plasma operational lifetimes.