Aye, I know what you mean. We went to see Leonardo's Horse before we went to the ground and walking toward it was jaw dropping. We were about 5 rows from the back and that sight will always say with me 👍
On the pre existing medical conditions thing I have 2 on my travel insurance which cost an extra 30 quid on mine. Even so it's just under £80 for me and the wife for a year.
Agreed, one of my favourite memories was walking up the stairs and into the stadium. As you said breathtaking, when you looked closer it was a bit run down but who cares what a stadium.