Def not a loon for wanting space. Cons would be not being able to put it up alone, being too big for some sites and maybe being charged extra for bigger pitch in high season.
Our last tent was black. Didn't help much with early waking and was roasting on warm days.
Biggest tent improvements for us were getting a poly cotton second hand out well - cool in summer, quiet when it rains. Is a 7 berth with 3 rooms plus living space and options to add porch, etc. And earplugs. And forgetting about bedtimes - after 3 nights of 10pm bedtimes ours fall into pattern of afternoon naps.
We used to have a huge tent until last summer when we realised we were going on 4 weekend camping trips.
It takes so much longer to put up (2 hours) and yes some campsites want to charge you more for the extra space.
We've got a Vango 4 man now which takes 15 minutes to put up, has an area where we can sit on chairs if it's raining, easily fits 3 airbeds. We take a gazebo in case we want to put it up over the table outside.
We're looking for a new tent too. Thinking about this . There are several similar ones out there. Later in the spring all the tent shops will put up their displays - go and look round and that may help you decide what space you need.
Partyfobs, if you can stretch your budget, look for the Vango Air tents - no poles, just pump it up! Vango are a really good make, we buy them for scouts, and they take a beating, but our last lot lasted 7-8 years of abuse.
We have an outwell whitecove? 6 man. The living space is very big. Would heartily recommend it. Its poles, not air but takes about 20mins to pitch (having done it twice before now). So quite quick for the size and my clumsiness
I am soooo jealous you guys can pitch a tent so quickly. We have a Vango somethingorother and it takes us at least 40 mins.. I hate tent pitching. Though we have only put it up 3 times, maybe next time will be quicker...