Prices for SuperRugby games are incredibly cheap. Would expect around a tenner.
Not really. Overnight flights with little time difference. Leave work Thursday early, sleep on the plane, 3 days of sightseeing! Sleep on the way back, arrive to work a little later than normal. 1 days holiday used. No Jet Lag, not bad! Cool! I'll take a look at the match for the 15th as we might be interested, depending on the price! So far, all I've booked is the flights and a hire car (free Avis weekend rental).
Long way to go for such a short time
I would say its worth collecting. They all add up and if you travel with a partner you can create a household account and join your avios together. You could also get the BA Amex and if you spend more than 20k per year you get a companion flight for free (well excl taxes) eg. I bought a flight for August Dubrovnik-London which cost me 7500 avios and £17.50 when buying cash flight would have cost £145. You can also use BA shopping to earn avios, same concept as quidco/topcashback. I personally find that I prefer using my Amex Platinum Cashback card as 1.25% cashback is always more value than 1 avios per £1 spent
Sure, it needs a bit more planning and you need to be flexible on dates. You can also collect avios with your online shopping instead of using a cashback website - https://shopping.ba.com We got a couple thousand points through our christmas shopping, we're about to buy a new bed and book our hotels for summer holidays and that'll get us approx 20,000 points. There's calculators online to help you work out how far you can go on your miles, or what kind of upgrade you could get Bear in mind avios only covers the fare, you still need to pay for taxes, surcharges etc