Lifetime deal, is it worth it?

I bought my Roamio Plus exactly a year ago and my 1-year contract is up. I was going to start another 1-year contract so I would pay $14.99 instead of $19.99. However, the customer service agent told me that I'm eligible to buy a lifetime subscription for $199 and $50 for each Mini box that I own.



Do you think this will be worth it?



I understand that I'll break even in about 15-16 months, but what I'm wondering is whether TiVo will offer me an even sweeter deal down the road (e.g., $100 lifetime deal after 6 more months, etc.).



Have anyone heard of them offering a better deal than this?



Thanks in advance.