When we moved here, we went in one week and bought a beef joint for Sunday lunch off our butcher.
The next week we bought a chicken for Sunday and some rump steak.
By the next week we bought all our meat from him.
One week, we'd been out and hadn't had time to get to the butchers, so went and bought a Beef Joint from Sainsbury's Taste the Difference range. We could taste the difference and have never bought meat anywhere since.
Pete(butcher) is great, last week I had no idea what to get for Dinner, went in and he gave me 3-4 different ideas,lol. I can buy 2 or 3 sausages in different flavours off him.
And his steak is to die for- I used to only eat steak very well done, his is so yummy i ate it medium rare last week.
My advice is bite the bullet, go in and ask their advice about cuts etc, if they are good butchers, they'll be happy to answers any questions you have, and be happy to advise you.
As for price, OK my meat bill is a little extra (usually £15-£20 a week) but the quality and taste makes it well worth it.