It is obsessive in the extreme and no, we're not the all the same.
I've watched almost everything I own and I never buy anything that I don't intend to watch. Out of 2,000+ Blu Ray titles and over 1,000 DVDs I have a "to watch" pile of about 15 titles and they will be watched. Anything I know I'll never watch again gets moved on.
He's spending around $15,000 to $20,000 dollars per year on new titles. That's round about 1,000 titles being added every year. Firstly, when dealing with that number of titles, there is no quality control in place, he's simply (as he states) "buying them by the pound" and filling shelves with anything that is released. Secondly at the rate he watches them (approximately 200 in 20 years of collecting), he will be dead before he has even watched a tiny fraction of his collection, as at the present rate he is buying 99 times the amount of titles he watches in a year - and that's in addition to approximately 14,800 titles he hasn't watched.
The giveaway is when he states that he would be very upset if he found that someone had more discs than he had. That statement shows that this isn't about a love of cinema or even home cinema, otherwise in 20 years of collecting he would have watched more than 200 discs. That's an average of 10 per year. Many of us on here watch that many in a week - I've watched 11 since Sunday!. No, this is all a rather a rather childish OCD about who has "the most toys".
Nothing "wonderful" about it - it's digital gluttony.