K7 rage

I'm starting to become frustrated with the lack of decent choices in 10-11spd cassettes, esp. the latter one.

I can't stand 2t jumps, I'm just too sensitive.

My favourite 10spd choice is a 13-26, with 50t large chainring at the front (and I have a 39t small, because I do a lot of cruising with 39-15, which is perfectly comfortable for 30kph).

For 9spd I run a 14-26, and I rarely miss the 13t, I need that gear seldom. 

On 11speed, there is an option for 14-26 (ultegra), but I cannot seem to find 13-29 or other fine increment choices. a 12t starter is not an option, because I rarely use the 13t, a 12t would function only as a "gear for storage".

why there is no option for a 13-29 or similar in 11speed? this is the only thing which holds me back from converting...

I cannot live without a 14-15-16-17-18-19 cluster in my cassette.. 

why manufacturers forcing those incredibly ridiculous cassettes with huge jumps and useless gears?

occasionally I go to slovakian mountains for some elevation, and I'm perfectly fine with a 26t largest, though my cadence with it is a bit.. slow.  and I never needed to pedal downhill, because gravity works pretty damn well up to 80-85kph.