Fair enough, that is your choice...
Many people running XP said the same thing, but frankly XP was WAY out of date in 2014 when it EOLed.
7 was worth the upgrade, Vista was easily skipped. 8.0 was easily skipped, 8.1 is worth the upgrade in some situations.
10 will be worth it. 7 is getting long in the tooth.
If you honestly run 7 until 2020, it is going to be just as bad as XP was last year.
I use windows Media Center daily with a HD-Homerun Prime. Let's see, I can pay my cable company $20/month for 2 boxes plus another $10/month for a DVR "service fee" (as if the box I'm renting that has a HD already in it requires a special "service"), for a total of $30/month -or- I can use my existing HTPC/Xbox360 extender and pay $1.50/month for a cable card, saving me $28.50 (plus tax) a month. I've had the setup for about 3.5 years, saving me about $1150 in fees, so even taking into consideration the cost of the computer, HD Homerun, and network equipment I'm ahead a lot of money - plus I also OWN another computer which also does have value. That's not even taking into consideration additional benefits like recording capacity (2TB in HTPC vs 500GB DVR), the ability to watch TV on *any* PC, plus use a $50 secondhand Xbox 360 as a media extender to replace the need for a second cable box, and the much faster/easier interface of Media Center compared to the TV providers dreadful interface. Yeah, sorry - I'm not looking to lose media center any time soon. If media center or another similarly functioning program is not available I'm simply not going to upgrade. End of story.
Genius is ten percent inspiration and fifty percent capital gains.