I bought a conference table and six conference room chairs from a company that was selling off a bunch of old furniture and equipment on Craigslist, which I've set up in my basement near a wood stove and kitchenette (full fridge, mini stove, sink and decent amount of counter space and cabinets. Nice for pot-luck game days. Also have a number of folding tables.
When not running my D&D game, the conference table is a general activity/game/craft/homework table. On game day, I set up two smaller tables at the end of the conference table, making a kind of L shape that I sit behind. On the side, I set up a large plasma TV for displaying maps, etc. And I have plenty of room for my lap top and books on the other table. I sometimes extend the conference room table with an additional folding table and some comfortable folding chairs when we have a larger group. I've thought of getting fancy "game" tables, but none have seemed as convenient as a number of high quality folding tables in different sized. If I had a larger area, I would replace my heavy conference table with four high-quality, solid 8' commercial folding tables. I could just have two set up most of the time and easily set up two more when I need. Or I could have multiple separate games going on at the same time. Basically, I want my basement to be a mini version of a LFGS.
I am looking at building or having built for me a portable digital map case for tabletop games. Something like this:
https://www.collabrewate.com/blog/2018/3/6/portable-tv-case-tabletop-games
In the past I thought about getting one built into the table, but having it separate is more practical. You can just put it away when not using it. You can carry it to a game store or friend's home. You can move it to different room in the house. I actually like that it is higher than the table, so spills are not a concern and player dice and papers don't intrude on the battlemap. I play a lot different games and have young kids, so I want tables I don't worry about spills, markers, scratches. Where people can just relax and have fun. I can put up a tabletop Foosball or air hockey, switch to board games, move to TTRPGs all in a single afternoon.
My favorite table, though, was a friend that took a section of a bowling lane floor when the bowling alley was being torn down and built a table out of it. Thing was indestructible and you'd need to really give it a hard kick to shake it enough to upset a drink. But it was also huge and heavy. Something you built for a room and would not easily change or move it.