bought one today at B&Q near me. cheap as chips £10.32 for a 150watt dual wheel bench grinder.
Might not last for ever but looks o.k. for light use. cheaper to buy a new one when the grinding wheels wear out

Yeah great value, only problem we had was the guards are very brittle and tend to crack / snap if knocked, made some better ones from polycarb and job is now sorted. still got some off cuts so let me know if yours snap and I'll whack it in post

I got one of these last year - wish I spent a little more though as they stall so easily.
Value for money I suppose