Would you buy a car with a welded alloy?

I might, but I would at least want a consideration on price to replace the alloy wheel.

I’ve never had a cracked or welded alloy on a Rangerover but did get a crack on a Jag wheel. Every 6 weeks or so I needed to add a bit of air when the sensor started shouting. It didn’t know it was cracked and assumed that it was just a slow puncture which I would get sorted “next week “ then it never got sorted as it never got any worse I just left it as it needed a new set of tyres shortly.
Ended up doing nearly 20K miles like that.
Only spotted the crack when it went for the new tyres, at the time a new alloy was the cost of 3 new Pirellis. I reckoned that as an unrepaired crack hadn’t got worse or failed in over a year then getting it welded wasn’t a problem so I did just that.
I don’t see a problem with having a minor crack repaired but there needs to be some common sense applied.

Scrap it and get another.
As a coded welder a long time ago, That has had a chunk out of the casting, which will weaken it as it will have a hairline fracture in it. Some places don't repair them properly. A wheel would need pre heat and post heat before welding so as not to affect the grain structure. Tony
You're always in the ........it's just the depth that varies
2014 L494 5.0 S/C AB Silver
2014 L494 3.0 HSE in Chilli
2014 SL63 AMG White


Gone:
2011 5.0 L322 White (Stolen)
07 4.2 SC in silver.
06 4.2 SC in black RSE
RRS 4.2 SC in Black RSE
52 4.4 Vogue in silver
04 Mercedes CLK 320 Conv
03 4.0 V8 ES Disco in Silver
00 TD5 90 County
98 4.6 HSE in Epsom x3
97 3.9ES Disco
93 L 4.2 LSE in black
too many classics to mention !