nobody said you lose your plan if you BYOD. I said for people on legacy plans they scored through work that are so well priced and featured that buying on contract ends up being a better deal than you get on the newer plans that discount your rate if you do BYOD. I'll try to make this simple:
Tom buys a phone outright for $700 and gets $20/month discount because ATT does that for you on their newer plans if you BYOD and saves $480. His monthly bill goes from $80 to $60. Total cost over 2 years for Tom is $2140
Dave buys a $700 phone on contract for $300. He has a kickin' legacy plan through work that includes lower long distance charges, no activation fees, and his special rate plan is only $50/month. Total cost for Dave over 2 years is $1500 (plus more savings from a better exclusive rate LD plan and other perks).
I totally made up those numbers by the way but the point is that my legacy plan means the discounts are deeper to buy on contract than they would be if I bought outright on one of the newer plans that offers you a discount if you BYOD.
Capisce?
On a side note there seems to be a bit of a negative undertone towards my mentioning some benefits of carrier contracts. And yeah, I get that, people aren't generally thrilled with carriers and ISP's. Maybe Tom is a bit jealous of Dave too. That doesn't mean those benefits don't exist though if you're lucky enough to have jumped on one of those plans when they were hot around 2011-2012. And that also means my monthly fees are permanently set at the lower rates from 2011 as well. There's a reason they aren't around as much anymore, the carriers don't like the savings we're getting from them but because they're enshrined in deals they've made with corporations, government employers and unions, they aren't willing to pull them.