re: How many here cook a lot and get by fine with just one oven?

I have one standard oven that serves me fine even when entertaining. In last month I purchased a breville counter top oven (800bxl) that I'm enjoying because I can use it for most things I use traditional oven for without heating bigger oven. While I haven't "needed" a second oven for entertaining, the Breville will probably get good use there too. So if you have the space, maybe look into a counter oven.

ETA: You can also look into a steam oven as a second oven. Because it has a different primary purpose you not find it as wasted space. You then can use it like a traditional oven when actually needing more space for a party. I don't have one myself, but my parents use theirs often.