In a ideal world, im looking for something that does old stuff as well as new? Like hdmi 2.1 120hz for occasional gaming, and good 4k blu ray images.Your old DVDs will probably look worse on any new 4K set, regardless of OLED or LCD.
Blurays upscale fine.
If you plan on upgrading your sources to 4K such as Netflix, UHD discs, etc, then you'd need to go up to the Sony XH9505 or an OLED to get the real benefit of 4K which is HDR.
TVs at smaller sizes don't really show off the resolution bump to 4K unless you sit, literally, a couple of feet from the screen.
If you don't have or plan on getting 4K sources I'd probably just take the TV they're offering.