Shoes that take SPD and SPD-SL cleats £50?

[DanX5]

I have just got back on my bike after many years and after putting a some dark, cold and wet miles on my Kona MTB since Christmas, I have just bought a second hand Kona Esseto D road bike as well as a Tacx smart flow trainer.

The road bike has come with SPD-SL pedals on it and I quite fancy fitting some SPD's to the mountain bike at some point. I am therefore after a shoe (up to £50 budget) that is a jack of all trades - needs to have SPD-SL and SPD cleat 'holes' on the bottom and I would prefer something that I can walk on (so probably favour the slightly more rugged MTB style sole rather than road style).

Can anyone recommend any particular shoe that fits the bill?

Or is my logic flawed (apart from the faff of changing cleats on the shoe), i.e. are there other reasons that I should buy two specific pairs (one for road bike SPD-SL and one for MTB just SPD) at say £30-35 mark?

[DanX5]

Thanks for all above responses. I'll look at costs and decide what to go for, gut feeling is that a decent pair of shoes and SPD's on both bikes looks the easier overall option and probably slightly cheaper to achieve.