Right, sperm (and future child) decisions. Sorry the post is so long, feel free to ignore (it's probably really boring anyway) but thank you for reading it, I think it?s helped just to write it down
Quick background for those who don?t know or can?t remember seeing as there?s so many threads 
DH and I had problems conceiving, took about 4 years in total. M is our first child and we ended up having her through ICSI. We ended up using 3 hospitals in our quest for a baby: NHS hospital 1 where we got our diagnosis from bitch nurse that we ?can?t have children?, NHS hospital 2 that we transferred our referral to because of treatment at hospital 1 and private hospital where we had a cycle of ICSI with egg share while we waited for our NHS funded go at hospital 2. Fortunately our first cycle at the private hospital resulted in M, it also gave us one 5 day old embryo that is frozen ready for use at a later date (we?ve paid for storage until March 2015).
The reason for our infertility was Oligozoospermia (low sperm count). Nurse at hospital 1 said that there were no further tests we could have done, that DH could be suffering from testicular failure and she recommended we pay for some sperm freezing pronto in case we got to the top of the waiting list and his sperm had ?run out? 
Further down the line at hospital 2, the consultant was outraged that the nurse hadn?t sent for any further tests, had some done there and it was concluded to not be testicular failiure or anything genetic but just one of those things.
Dr at private hospital recommended we had some sperm frozen as a back up for the ICSI, just incase the fresh sample on the day was a particularly low count. DHs fresh sample on the day was fine. The frozen back up is the sperm in question.
That sperm has now been stored for a year and we have to pay if we want to keep it in storage (£250 for two years). After much discussion we have decided that we?re going to not continue with the storage of the sperm. I think it is the right decision but I have a niggle so that?s why I wanted to post to see what other people thought.
Our reasoning behind this is?
? We have one frozen embryo that we are going to use at some point to TTC DC2, hopefully this will work.
? If the FET doesn?t work I?m not sure I could go through another cycle of ICSI anyway; it was hard work on us. I just got on with it at the time but afterwards said I didn?t want to do it again, although I might have felt differently if it hadn?t worked. The egg collection in particular was bad; I was in a lot of pain for 5 days, hardly moving for 3 of those. I don?t think that would be fair on a toddler.
? If we did decide to have ICSI again further down the line, there?s nothing to say we?d even need the frozen sperm. The further tests showed that it wasn?t testicular failure, so DH should carry on producing sperm, he?ll just always have a low count.
? If we did decide we wanted more ICSI and the worst did happen and DH had a zero count, there are other options (although more expensive) to still get sperm.
? It?s £250 we can?t afford at the moment especially when there?s a big chance that we?d never use it. The £250 would only store it until March 2015 which is when we?d probably be starting to think about using the frozen embryo (I?d like to go for FET Summer 2015 for a Spring 2016 baby) so we?d have to pay another £300-400 to keep it frozen for longer again.
So we?re going to get rid of it. It has served the purpose for what it was frozen for in the first place, as a back up for the successful ICSI cycle. I think that?s the right decision, there?s just that little niggle of what if in the back of my mind.