IVF or varicocele repair?

Me and my husband have been trying to conceive for 15 months with no luck. My husband had a sperm analysis done showing low motility (4%) even after vitamins and lifestyle changes we did a repeat SA in 3 months and motility was still low.

His urologist says he has a medium size varicocele and that repairing MAY help him or may not. The repair will cost us $10000. And will take 6 months to show improvement (we are both 30 so we have time on our side)

We had a consult with a RE and she insist we would need IVF w/ ICSI which is around $20000 with a 50% success rate.

I ovulate regularly and get periods every month but now am getting a work up to see if I have issues too.

Anybody in a similar situation that can offer advice? We arent sure which way to go. IVF with ICSI seems appropriate but I’m not sure if we should do the varicocele repair??